EXHIBIT 4.4

                                   RAMBUS INC.
                                 1997 STOCK PLAN


        1.      Purposes of the Plan. The purposes of this Stock Plan are:
                --------------------

                .       to attract and retain the best available personnel for
                        positions of substantial responsibility,

                .       to provide additional incentive to Employees, Directors
                        and Consultants, and

                .       to promote the success of the Company's business.

        Options granted under the Plan may be Incentive Stock Options or
Nonstatutory Stock Options, as determined by the Administrator at the time of
grant. Stock Purchase Rights and Common Stock Equivalents may also be granted
under the Plan. The Plan also provides for automatic grants of Nonstatutory
Stock Options to Outside Directors.

        2.      Definitions. As used herein, the following definitions shall
                -----------
                apply:

                (a)     "Administrator" means the Board or any of its Committees
                         -------------
as shall be administering the Plan, in accordance with Section 4 of the Plan.

                (b)     "Applicable Laws" means the requirements relating to the
                         ---------------
administration of stock option plans under U. S. state corporate laws, U.S.
federal and state securities laws, the Code, any stock exchange or quotation
system on which the Common Stock is listed or quoted and the applicable laws of
any foreign country or jurisdiction where Awards are, or will be, granted under
the Plan.

                (c)     "Award" means an award of Options, Stock Purchase Rights
                         -----
or Common Stock Equivalents pursuant to the terms of the Plan.

                (d)     "Board" means the Board of Directors of the Company.
                         -----

                (e)     "Code" means the Internal Revenue Code of 1986, as
                         ----
amended.

                (f)     "Committee" means a committee of Directors appointed by
                         ---------
the Board in accordance with Section 4 of the Plan.

                (g)     "Common Stock" means the common stock of the Company.
                         ------------


                (h)     "Common Stock Equivalent" means an unfunded and
                         -----------------------
unsecured right to receive Shares in the future that may be granted to a Service
Provider pursuant to Section 12.

                (i)     "Common Stock Equivalent Agreement" means a written
                         ---------------------------------
agreement between the Company and a Service Provider evidencing the terms and
conditions of an individual Common Stock Equivalent grant or Award.

                (j)     "Company" means Rambus Inc., a Delaware corporation.
                         -------

                (k)     "Consultant" means any person, including an advisor,
                         ----------
engaged by the Company or a Parent or Subsidiary to render services to such
entity.

                (l)     "Director" means a member of the Board.
                         --------

                (m)     "Disability" means total and permanent disability as
                         ----------
defined in Section 22(e)(3) of the Code.

                (n)     "Employee" means any person, including Officers and
                         --------
Directors, employed by the Company or any Parent or Subsidiary of the Company. A
Service Provider shall not cease to be an Employee in the case of (i) any leave
of absence approved by the Company or (ii) transfers between locations of the
Company or between the Company, its Parent, any Subsidiary, or any successor.
For purposes of Incentive Stock Options, no such leave may exceed ninety days,
unless reemployment upon expiration of such leave is guaranteed by statute or
contract. If reemployment upon expiration of a leave of absence approved by the
Company is not so guaranteed, on the 181st day of such leave any Incentive Stock
Option held by the Optionee shall cease to be treated as an Incentive Stock
Option and shall be treated for tax purposes as a Nonstatutory Stock Option.
Neither service as a Director nor payment of a director's fee by the Company
shall be sufficient to constitute "employment" by the Company.

                (o)     "Exchange Act" means the Securities Exchange Act of
                         ------------
1934, as amended.

                (p)     "Fair Market Value" means, as of any date, the value of
                         -----------------
Common Stock determined as follows:

                        (i)     If the Common Stock is listed on any established
stock exchange or a national market system, including without limitation the
Nasdaq National Market or The Nasdaq SmallCap Market of The Nasdaq Stock Market,
its Fair Market Value shall be the closing sales price for such stock (or the
closing bid, if no sales were reported) as quoted on such exchange or system for
the last market trading day prior to the time of determination, as reported in
The Wall Street Journal or such other source as the Administrator deems
reliable;


                        (ii)    If the Common Stock is regularly quoted by a
recognized securities dealer but selling prices are not reported, the Fair
Market Value of a Share of Common Stock shall be the mean between the high bid
and low asked prices for the Common Stock on the last market trading day prior
to the day of determination, as reported in The Wall Street Journal or such
other source as the Administrator deems reliable; or

                        (iii)   In the absence of an established market for the
Common Stock, the Fair Market Value shall be determined in good faith by the
Administrator.

                (q)     "Incentive Stock Option" means an Option intended to
                         ----------------------
qualify as an incentive stock option within the meaning of Section 422 of the
Code and the regulations promulgated thereunder.

                (r)     "Inside Director" means a Director who is an Employee.
                         ---------------
The term Inside Director shall include the founders, Mike Farmwald and Mark
Horowitz.

                (s)     "Nonstatutory Stock Option" means an Option not intended
                         -------------------------
to qualify as an Incentive Stock Option.

                (t)     "Notice of Grant" means a written or electronic notice
                         ---------------
evidencing certain terms and conditions of an individual Option or Stock
Purchase Right grant. The Notice of Grant is part of the Option Agreement.

                (u)     "Officer" means a person who is an officer of the
                         -------
Company within the meaning of Section 16 of the Exchange Act and the rules and
regulations promulgated thereunder.

                (v)     "Option" means a stock option granted pursuant to the
                         ------
Plan.

                (w)     "Option Agreement" means an agreement between the
                         ----------------
Company and an Optionee evidencing the terms and conditions of an individual
Option grant. The Option Agreement is subject to the terms and conditions of the
Plan.

                (x)     "Option Exchange Program" means a program whereby
                         -----------------------
outstanding Options are surrendered in exchange for Options with a lower
exercise price.

                (y)     "Outside Director" means a Director who is not an
                         ----------------
Employee; provided, however, that such term shall not include the founders, Mike
Farmwald and Mark Horowitz.

                (z)     "Optioned Stock" means the Common Stock subject to an
                         --------------
Option or Stock Purchase Right.


                (aa)    "Optionee" means the holder of an outstanding Option or
                         --------
Stock Purchase Right granted under the Plan.

                (bb)    "Parent" means a "parent corporation," whether now or
                         ------
hereafter existing, as defined in Section 424(e) of the Code.

                (cc)    "Plan" means this 1997 Stock Plan.
                         ----

                (dd)    "Restricted Stock" means shares of Common Stock acquired
                         ----------------
pursuant to a grant of Stock Purchase Rights under Section 11 of the Plan.

                (ee)    "Restricted Stock Purchase Agreement" means a written
                         -----------------------------------
agreement between the Company and the Optionee evidencing the terms and
restrictions applying to stock purchased under a Stock Purchase Right. The
Restricted Stock Purchase Agreement is subject to the terms and conditions of
the Plan and the Notice of Grant.

                (ff)    "Rule 16b-3" means Rule 16b-3 of the Exchange Act or any
                         ----------
successor to Rule 16b-3, as in effect when discretion is being exercised with
respect to the Plan.

                (gg)    "Section 16(b)" means Section 16(b) of the Exchange Act.
                         -------------

                (hh)    "Service Provider" means an Employee, Director or
                         ----------------
Consultant.

                (ii)    "Share" means a share of the Common Stock, as adjusted
                         -----
in accordance with Section 15 of the Plan.

                (jj)    "Stock Purchase Right" means the right to purchase
                         --------------------
Common Stock pursuant to Section 11 of the Plan, as evidenced by a Notice of
Grant.

                (kk)    "Subsidiary" means a "subsidiary corporation", whether
                         ----------
now or hereafter existing, as defined in Section 424(f) of the Code.

        3.      Stock Subject to the Plan. Subject to the provisions of Section
                -------------------------
15 of the Plan, the maximum aggregate number of Shares which may be optioned and
sold under the Plan is 1,000,000 Shares, plus an annual increase as of the last
day of each of the Company's immediately preceding fiscal years during the term
of the Plan equal to the lesser of (i) the number of Shares needed to restore
the maximum aggregate number of Shares which may be optioned and sold under the
Plan to 1,000,000 Shares, (ii) four percent (4%) of the outstanding Shares on
such date, or (iii) a lesser amount determined by the Board. The Shares may be
authorized, but unissued, or reacquired Common Stock.


                If an Option or Stock Purchase Right expires or becomes
unexercisable without having been exercised in full, or is surrendered pursuant
to an Option Exchange Program, the unpurchased Shares which were subject thereto
shall become available for future grant or sale under the Plan (unless the Plan
has terminated); provided, however, that Shares that have actually been issued
                 --------
under the Plan, whether upon exercise of an Option or Right, shall not be
returned to the Plan and shall not become available for future distribution
under the Plan, except that if Shares of Restricted Stock are repurchased by the
Company at their original purchase price, such Shares shall become available for
future grant under the Plan.

        4.      Administration of the Plan.
                --------------------------

                (a)     Procedure.
                        ---------

                        (i)     Multiple Administrative Bodies. The Plan may be
                                ------------------------------
administered by different Committees with respect to different groups of Service
Providers.

                        (ii)    Section 162(m). To the extent that the
                                --------------
Administrator determines it to be desirable to qualify Options granted hereunder
as "performance-based compensation" within the meaning of Section 162(m) of the
Code, the Plan shall be administered by a Committee of two or more "outside
directors" within the meaning of Section 162(m) of the Code.

                        (iii)   Rule 16b-3. To the extent desirable to qualify
                                ----------
transactions hereunder as exempt under Rule 16b-3, the transactions contemplated
hereunder shall be structured to satisfy the requirements for exemption under
Rule 16b-3.

                        (iv)    Grants to Outside Directors. All grants of
                                ---------------------------
Options to Outside Directors made pursuant to Section 14 of the Plan shall be
automatic and nondiscretionary.

                        (v)     Other Administration. Other than as provided
                                --------------------
above, the Plan shall be administered by (A) the Board or (B) a Committee, which
committee shall be constituted to satisfy Applicable Laws.

                (b)     Powers of the Administrator. Subject to the provisions
                        ---------------------------
of the Plan, and in the case of a Committee, subject to the specific duties
delegated by the Board to such Committee, the Administrator shall have the
authority, in its discretion:

                        (i)     to determine the Fair Market Value;

                        (ii)    to select the Service Providers to whom Awards
may be granted hereunder;

                        (iii)   to determine the number of shares of Common
Stock to be covered by each Award granted hereunder;


                        (iv)    to approve forms of agreement for use under the
Plan;

                        (v)     to determine the terms and conditions, not
inconsistent with the terms of the Plan, of any Award granted hereunder. Such
terms and conditions include, but are not limited to, the exercise price, the
time or times when Options or Stock Purchase Rights may be exercised (which may
be based on performance criteria), the time or times when Common Stock
Equivalents may be converted to Shares, any vesting acceleration or waiver of
forfeiture restrictions, and any restriction or limitation regarding any Award
or the Shares relating thereto, based in each case on such factors as the
Administrator, in its sole discretion, shall determine;

                        (vi)    to reduce the exercise price of any Option or
Stock Purchase Right to the then current Fair Market Value, or to adjust the
number of Shares subject to a Common Stock Equivalent, if the Fair Market Value
of the Common Stock shall have declined since the date the Award was granted;

                        (vii)   to institute an Option Exchange Program;

                        (viii)  to construe and interpret the terms of the Plan
and Awards granted pursuant to the Plan;

                        (ix)    to prescribe, amend and rescind rules and
regulations relating to the Plan, including rules and regulations relating to
sub-plans established for the purpose of qualifying for preferred tax treatment
under foreign tax laws;

                        (x)     to modify or amend each Award (subject to
Section 17(c) of the Plan), including the discretionary authority to extend the
post-termination exercisability period of Options longer than is otherwise
provided for in the Plan;

                        (xi)    to allow Optionees to satisfy withholding tax
obligations by electing to have the Company withhold from the Shares to be
issued upon exercise of an Option or Stock Purchase Right that number of Shares
having a Fair Market Value equal to the amount required to be withheld. The Fair
Market Value of the Shares to be withheld shall be determined on the date that
the amount of tax to be withheld is to be determined. All elections by an
Optionee to have Shares withheld for this purpose shall be made in such form and
under such conditions as the Administrator may deem necessary or advisable;

                        (xii)   to authorize any person to execute on behalf of
the Company any instrument required to effect the grant of an Option or Stock
Purchase Right previously granted by the Administrator;


                        (xiii)  to make all other determinations deemed
necessary or advisable for administering the Plan.

                (c)     Effect of Administrator's Decision. The Administrator's
                        ----------------------------------
decisions, determinations and interpretations shall be final and binding on all
Optionees and any other holders of Awards.

        5.      Eligibility. Nonstatutory Stock Options, Stock Purchase Rights
                -----------
and Common Stock Equivalents may be granted to Service Providers. Incentive
Stock Options may be granted only to Employees.

        6.      Limitations.
                -----------

                (a)     Each Option shall be designated in the Option Agreement
as either an Incentive Stock Option or a Nonstatutory Stock Option. However,
notwithstanding such designation, to the extent that the aggregate Fair Market
Value of the Shares with respect to which Incentive Stock Options are
exercisable for the first time by the Optionee during any calendar year (under
all plans of the Company and any Parent or Subsidiary) exceeds $100,000, such
Options shall be treated as Nonstatutory Stock Options. For purposes of this
Section 6(a), Incentive Stock Options shall be taken into account in the order
in which they were granted. The Fair Market Value of the Shares shall be
determined as of the time the Option with respect to such Shares is granted.

                (b)     Neither the Plan nor any Award shall confer upon an
Optionee any right with respect to continuing the Optionee's relationship as a
Service Provider with the Company, nor shall they interfere in any way with the
Optionee's right or the Company's right to terminate such relationship at any
time, with or without cause.

                (c)     The following limitations shall apply to grants of
Options:

                        (i)     No Service Provider shall be granted, in any
fiscal year of the Company, Options to purchase more than 250,000 Shares.

                        (ii)    In connection with his or her initial service, a
Service Provider may be granted Options to purchase up to an additional 250,000
Shares which shall not count against the limit set forth in subsection (i)
above.

                        (iii)   The foregoing limitations shall be adjusted
proportionately in connection with any change in the Company's capitalization as
described in Section 15.

                        (iv)    If an Option is canceled in the same fiscal year
of the Company in which it was granted (other than in connection with a
transaction described in Section 15), the canceled Option will be counted
against the limits set forth in subsections (i) and (ii) above. For this
purpose,


if the exercise price of an Option is reduced, the transaction will be treated
as a cancellation of the Option and the grant of a new Option.

        7.      Term of Plan. Subject to Section 21 of the Plan, the Plan shall
                ------------
become effective upon its adoption by the Board. It shall continue in effect for
a term of ten (10) years unless terminated earlier under Section 17 of the Plan.

        8.      Term of Option. The term of each Option shall be stated in the
                --------------
Option Agreement. In the case of an Incentive Stock Option, the term shall be
ten (10) years from the date of grant or such shorter term as may be provided in
the Option Agreement. Moreover, in the case of an Incentive Stock Option granted
to an Optionee who, at the time the Incentive Stock Option is granted, owns
stock representing more than ten percent (10%) of the total combined voting
power of all classes of stock of the Company or any Parent or Subsidiary, the
term of the Incentive Stock Option shall be five (5) years from the date of
grant or such shorter term as may be provided in the Option Agreement.

        9.      Option Exercise Price and Consideration.
                ---------------------------------------

                (a)     Exercise Price. The per share exercise price for the
                        --------------
Shares to be issued pursuant to exercise of an Option shall be determined by the
Administrator, subject to the following:

                        (i)     In the case of an Incentive Stock Option

                                (A)     granted to an Employee who, at the time
the Incentive Stock Option is granted, owns stock representing more than ten
percent (10%) of the voting power of all classes of stock of the Company or any
Parent or Subsidiary, the per Share exercise price shall be no less than 110% of
the Fair Market Value per Share on the date of grant.

                                (B)     granted to any Employee other than an
Employee described in paragraph (A) immediately above, the per Share exercise
price shall be no less than 100% of the Fair Market Value per Share on the date
of grant.

                        (ii)    In the case of a Nonstatutory Stock Option, the
per Share exercise price shall be determined by the Administrator. In the case
of a Nonstatutory Stock Option intended to qualify as "performance-based
compensation" within the meaning of Section 162(m) of the Code, the per Share
exercise price shall be no less than 100% of the Fair Market Value per Share on
the date of grant.

                        (iii)   Notwithstanding the foregoing, Options may be
granted with a per Share exercise price of less than 100% of the Fair Market
Value per Share on the date of grant pursuant to a merger or other corporate
transaction.


                (b)     Waiting Period and Exercise Dates. At the time an Option
                        ---------------------------------
is granted, the Administrator shall fix the period within which the Option may
be exercised and shall determine any conditions which must be satisfied before
the Option may be exercised.

                (c)     Form of Consideration. The Administrator shall determine
                        ---------------------
the acceptable form of consideration for exercising an Option, including the
method of payment. In the case of an Incentive Stock Option, the Administrator
shall determine the acceptable form of consideration at the time of grant. Such
consideration may consist entirely of:

                        (i)     cash;

                        (ii)    check;

                        (iii)   promissory note;

                        (iv)    other Shares which (A) in the case of Shares
acquired upon exercise of an option, have been owned by the Optionee for more
than six months on the date of surrender, and (B) have a Fair Market Value on
the date of surrender equal to the aggregate exercise price of the Shares as to
which said Option shall be exercised;

                        (v)     consideration received by the Company under a
cashless exercise program implemented by the Company in connection with the
Plan;

                        (vi)    a reduction in the amount of any Company
liability to the Optionee, including any liability attributable to the
Optionee's participation in any Company-sponsored deferred compensation program
or arrangement;

                        (vii)   any combination of the foregoing methods of
payment; or

                        (viii)  such other consideration and method of payment
for the issuance of Shares to the extent permitted by Applicable Laws.

        10.     Exercise of Option.
                ------------------

                (a)     Procedure for Exercise; Rights as a Stockholder. Any
                        -----------------------------------------------
Option granted hereunder shall be exercisable according to the terms of the Plan
and at such times and under such conditions as determined by the Administrator
and set forth in the Option Agreement. Unless the Administrator provides
otherwise, vesting of Options granted hereunder shall be tolled during any
unpaid leave of absence. An Option may not be exercised for a fraction of a
Share.

                        An Option shall be deemed exercised when the Company
receives: (i) written or electronic notice of exercise (in accordance with the
Option Agreement) from the person entitled to


exercise the Option, and (ii) full payment for the Shares with respect to which
the Option is exercised. Full payment may consist of any consideration and
method of payment authorized by the Administrator and permitted by the Option
Agreement and the Plan. Shares issued upon exercise of an Option shall be issued
in the name of the Optionee or, if requested by the Optionee, in the name of the
Optionee and his or her spouse. Until the Shares are issued (as evidenced by the
appropriate entry on the books of the Company or of a duly authorized transfer
agent of the Company), no right to vote or receive dividends or any other rights
as a stockholder shall exist with respect to the Optioned Stock, notwithstanding
the exercise of the Option. The Company shall issue (or cause to be issued) such
Shares promptly after the Option is exercised. No adjustment will be made for a
dividend or other right for which the record date is prior to the date the
Shares are issued, except as provided in Section 15 of the Plan.

                        Exercising an Option in any manner shall decrease the
number of Shares thereafter available, both for purposes of the Plan and for
sale under the Option, by the number of Shares as to which the Option is
exercised.

                (b)     Termination of Relationship as a Service Provider. If an
                        -------------------------------------------------
Optionee ceases to be a Service Provider, other than upon the Optionee's death
or Disability, the Optionee may exercise his or her Option within such period of
time as is specified in the Option Agreement to the extent that the Option is
vested on the date of termination (but in no event later than the expiration of
the term of such Option as set forth in the Option Agreement). In the absence of
a specified time in the Option Agreement, the Option shall remain exercisable
for three (3) months following the Optionee's termination. If, on the date of
termination, the Optionee is not vested as to his or her entire Option, the
Shares covered by the unvested portion of the Option shall revert to the Plan.
If, after termination, the Optionee does not exercise his or her Option within
the time specified by the Administrator, the Option shall terminate, and the
Shares covered by such Option shall revert to the Plan.

                (c)     Disability of Optionee. If an Optionee ceases to be a
                        ----------------------
Service Provider as a result of the Optionee's Disability, the Optionee may
exercise his or her Option within such period of time as is specified in the
Option Agreement to the extent the Option is vested on the date of termination
(but in no event later than the expiration of the term of such Option as set
forth in the Option Agreement). In the absence of a specified time in the Option
Agreement, the Option shall remain exercisable for twelve (12) months following
the Optionee's termination. If, on the date of termination, the Optionee is not
vested as to his or her entire Option, the Shares covered by the unvested
portion of the Option shall revert to the Plan. If, after termination, the
Optionee does not exercise his or her Option within the time specified herein,
the Option shall terminate, and the Shares covered by such Option shall revert
to the Plan.

                (d)     Death of Optionee. If an Optionee dies while a Service
                        -----------------
Provider, the Option may be exercised within such period of time as is specified
in the Option Agreement (but in no event later than the expiration of the term
of such Option as set forth in the Notice of Grant), by the Optionee's


estate or by a person who acquires the right to exercise the Option by bequest
or inheritance, but only to the extent that the Option is vested on the date of
death. In the absence of a specified time in the Option Agreement, the Option
shall remain exercisable for twelve (12) months following the Optionee's
termination. If, at the time of death, the Optionee is not vested as to his or
her entire Option, the Shares covered by the unvested portion of the Option
shall immediately revert to the Plan. The Option may be exercised by the
executor or administrator of the Optionee's estate or, if none, by the person(s)
entitled to exercise the Option under the Optionee's will or the laws of descent
or distribution. If the Option is not so exercised within the time specified
herein, the Option shall terminate, and the Shares covered by such Option shall
revert to the Plan.

                (e)     Buyout Provisions. The Administrator may at any time
                        -----------------
offer to buy out for a payment in cash or Shares an Option previously granted
based on such terms and conditions as the Administrator shall establish and
communicate to the Optionee at the time that such offer is made.

        11.     Stock Purchase Rights.
                ---------------------

                (a)     Rights to Purchase. Stock Purchase Rights may be issued
                        ------------------
either alone, in addition to, or in tandem with other Awards granted under the
Plan and/or cash awards made outside of the Plan. After the Administrator
determines that it will offer Stock Purchase Rights under the Plan, it shall
advise the offeree in writing or electronically, by means of a Notice of Grant,
of the terms, conditions and restrictions related to the offer, including the
number of Shares that the offeree shall be entitled to purchase, the price to be
paid, and the time within which the offeree must accept such offer. The offer
shall be accepted by execution of a Restricted Stock Purchase Agreement in the
form determined by the Administrator.

                (b)     Repurchase Option. Unless the Administrator determines
                        -----------------
otherwise, the Restricted Stock Purchase Agreement shall grant the Company a
repurchase option exercisable upon the voluntary or involuntary termination of
the purchaser's service with the Company for any reason (including death or
Disability). The purchase price for Shares repurchased pursuant to the
Restricted Stock Purchase Agreement shall be the original price paid by the
purchaser and may be paid by cancellation of any indebtedness of the purchaser
to the Company. The repurchase option shall lapse at a rate determined by the
Administrator.

                (c)     Other Provisions. The Restricted Stock Purchase
                        ----------------
Agreement shall contain such other terms, provisions and conditions not
inconsistent with the Plan as may be determined by the Administrator in its sole
discretion.

                (d)     Rights as a Stockholder. Once the Stock Purchase Right
                        -----------------------
is exercised, the purchaser shall have the rights equivalent to those of a
stockholder, and shall be a stockholder when his or her purchase is entered upon
the records of the duly authorized transfer agent of the Company. No adjustment
will be made for a dividend or other right for which the record date is prior to
the date the Stock Purchase Right is exercised, except as provided in Section 15
of the Plan.


        12.     Common Stock Equivalents.
                ------------------------

                  (a) Award of Common Stock Equivalents. Common Stock
                      ---------------------------------
Equivalents may be awarded to Service Providers either alone, in addition to, or
in tandem with other Awards granted under the Plan and/or cash awards made
outside of the Plan. An Award of Common Stock Equivalents shall be made pursuant
to a Common Stock Equivalent Agreement in such form as is determined by the
Administrator.

                  (b) Bookkeeping Account; Nontransferability. The number of
                      ---------------------------------------
Common Stock Equivalents awarded pursuant to Section 12(a) to each Service
Provider shall be credited to a bookkeeping account established in the name of
the Service Provider at such time or times as specified in the Service
Provider's Common Stock Equivalent Agreement. The Company's obligation with
respect to such Common Stock Equivalents shall not be funded or secured in any
manner. A Service Provider's right to receive Common Stock Equivalents may not
be assigned or transferred, voluntarily or involuntarily, except as expressly
provided herein.

                  (c) Dividends. If the Company pays a cash dividend with
                      ---------
respect to the Shares at any time while Common Stock Equivalents are credited to
a Service Provider's account, there shall be credited to the Service Provider's
account additional Common Stock Equivalents equal to (i) the dollar amount of
the cash dividend the Service Provider would have received had he or she been
the actual owner of the Shares to which the Common Stock Equivalents then
credited to the Service Provider's account relate, divided by (ii) the Fair
Market Value of one Share on the dividend payment date. The Company will pay the
Service Provider a cash payment in lieu of fractional Common Stock Equivalents
on the date of such dividend payment.

                  (d) Conversion. The Company shall deliver to the Service
                      ----------
Provider (or his or her designated beneficiary or estate) a number of Shares
equal to the whole number of Common Stock Equivalents then credited to the
Service Provider's account, at such time or times as specified in the Service
Provider's Common Stock Equivalent Agreement, or as otherwise provided herein.

                  (e) Stockholder Rights. A Service Provider (or his or her
                      ------------------
designated beneficiary or estate) shall not be entitled to any voting or other
stockholder rights as a result of the credit of Common Stock Equivalents to the
Service Provider's account, until certificates representing Shares are delivered
to the Service Provider (or his or her designated beneficiary or estate) upon
conversion of the Service Provider's Common Stock Equivalents pursuant to
Section 12(d).

        13.     Non-Transferability of Awards. Unless determined otherwise by
                -----------------------------
the Administrator, an Award may not be sold, pledged, assigned, hypothecated,
transferred, or disposed of in any manner other than by will or by the laws of
descent or distribution and may be exercised, during the lifetime of the
Optionee, only by the Optionee. If the Administrator makes an Award
transferable, such Award shall contain such additional terms and conditions as
the Administrator deems appropriate.


        14.     Automatic Option Grants to Outside Directors.
                --------------------------------------------

                  (a) First Option. Each Outside Director who becomes an Outside
                      ------------
Director after the effective date of this Plan shall be automatically granted a
Nonstatutory Stock Option to purchase 10,000 Shares (the "First Option") on the
date on which such person first becomes an Outside Director, whether through
election by the stockholders of the Company or appointment by the Board to fill
a vacancy; provided, however, that an Inside Director who ceases to be an Inside
Director but who remains a Director shall not receive a First Option.

                  (b) Subsequent Option. Each Outside Director shall be
                      -----------------
automatically granted a Nonstatutory Stock Option to purchase 5,000 Shares (a
"Subsequent Option") on October 1 of each year; provided that he or she is then
an Outside Director and, provided further, that as of such date, he or she shall
have served on the Board for at least the preceding six (6) months.

                  (c) Terms of Options. The terms of First Options and
                      ----------------
Subsequent Options granted hereunder shall be as follows:

                              (A) the term of each Option shall be ten (10)
years.

                              (B) the exercise price per Share shall be 100% of
the Fair Market Value per Share on the date of grant. In the event that the date
of grant is not a trading day, the exercise price per Share shall be the Fair
Market Value on the next trading day immediately following the date of grant.

                              (C) 12.5% of the Shares subject to the Option
shall vest six months after the date of grant, and 1/48 of the Shares subject to
the Option shall vest each month thereafter so that 100% of the Shares subject
to the Option shall be vested four (4) years from the grant date, subject to the
Optionee remaining a Service Provider as of such vesting dates.

        15.     Adjustments Upon Changes in Capitalization, Dissolution, Merger
                ---------------------------------------------------------------
or Asset Sale.
- -------------

                  (a) Changes in Capitalization. Subject to any required action
                      -------------------------
by the stockholders of the Company, the number of shares of Common Stock covered
by each outstanding Award, the number of Common Stock Equivalents credited to a
Service Provider's account under Section 12(b) and the number of shares of
Common Stock which have been authorized for issuance under the Plan but as to
which no Awards have yet been granted or which have been returned to the Plan
upon cancellation or expiration of an Award, as well as the price per share of
Common Stock covered by each such outstanding Award, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Common
Stock resulting from a stock split, reverse stock split, stock dividend,
combination or reclassification of the Common Stock, or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of consideration by the


Company; provided, however, that conversion of any convertible securities of the
Company shall not be deemed to have been "effected without receipt of
consideration." Such adjustment shall be made by the Board, whose determination
in that respect shall be final, binding and conclusive. Except as expressly
provided herein, no issuance by the Company of shares of stock of any class, or
securities convertible into shares of stock of any class, shall affect, and no
adjustment by reason thereof shall be made with respect to, the number or price
of shares of Common Stock subject to an Award.

                  (b) Dissolution or Liquidation. In the event of the proposed
                      --------------------------
dissolution or liquidation of the Company, the Administrator shall notify each
Optionee as soon as practicable prior to the effective date of such proposed
transaction. The Administrator in its discretion may provide: (i) for an
Optionee to have the right to exercise his or her Option until ten (10) days
prior to such transaction as to all of the Optioned Stock covered thereby,
including Shares as to which the Option would not otherwise be exercisable; (ii)
that any Company repurchase option applicable to any Shares purchased upon
exercise of an Option or Stock Purchase Right shall lapse as to all such Shares,
provided the proposed dissolution or liquidation takes place at the time and in
the manner contemplated; and (iii) that any Common Stock Equivalents credited to
a Service Provider's account under Section 12(b) shall convert into Shares (as
provided in Section 12(d)) immediately prior to the consummation of any such
dissolution or liquidation. To the extent it has not been previously exercised,
an Award will terminate immediately prior to the consummation of such proposed
action.

              (c) Merger or Asset Sale. In the event of a merger of the Company
                  --------------------
with or into another corporation, or the sale of substantially all of the assets
of the Company (a "Merger"), each outstanding Award shall be assumed or an
equivalent award substituted by the successor corporation or a Parent or
Subsidiary of the successor corporation (the "Successor Corporation").

                  Following such assumption or substitution in connection with a
Merger, if the Optionee's status as an Employee or employee of the Successor
Corporation, as applicable, is terminated by the Successor Corporation as a
result of an Involuntary Termination (as defined below) other than for Cause (as
defined below) within twelve months following a Merger, then (i) the Optionee
shall fully vest in and have the right to exercise Optionee's Option or Stock
Purchase Right as to all of the Optioned Stock, including Shares as to which
Optionee would not otherwise be vested or exercisable; and (ii) Common Stock
Equivalents credited to a Service Provider's account under Section 12(b) shall
convert into Shares (as provided in Section 12(d)) on the date of such
termination. Thereafter, the Award shall remain exercisable in accordance with
Sections 10(b) through (d) and Section 12 above.

                  For purposes of this section, any of the following events
shall constitute an "Involuntary Termination": (i) without the Employee's
express written consent, a significant reduction of the Employee's duties,
authority or responsibilities, relative to the Employee's duties, authority or
responsibilities as in effect immediately prior to the Merger, or the assignment
to Employee of such reduced duties, authority or responsibilities; (ii) without
the Employee's express written consent, a substantial reduction, without good
business reasons, of the facilities and


perquisites (including office space and location) available to the Employee
immediately prior to the Merger; (iii) a reduction by the Successor Corporation
in the base salary of the Employee as in effect immediately prior to the Merger;
(iv) a material reduction by the Successor Corporation in the kind or level of
employee benefits, including bonuses, to which the Employee was entitled
immediately prior to the Merger with the result that the Employee's overall
benefits package is significantly reduced; (v) the relocation of the Employee to
a facility or a location more than fifty (50) miles from the Employee's then
present location, without the Employee's express written consent; (vi) any
purported termination of the Employee by the Corporation which is not effected
for Disability or for Cause, or any purported termination for which the grounds
relied upon are not valid; (vii) or any act or set of facts or circumstances
which would, under California case law or statute constitute a constructive
termination of the Employee.

               For purposes of this section, "Cause" shall mean (i) any act of
personal dishonesty taken by the Employee in connection with his
responsibilities as an employee and intended to result in substantial personal
enrichment of the Employee, (ii) the conviction of a felony, (iii) a willful act
by the Employee which constitutes gross misconduct and which is injurious to the
Successor Corporation, and (iv) following delivery to the Employee of a written
demand for performance from the Successor Corporation which describes the basis
for the Successor Corporation's belief that the Employee has not substantially
performed his duties, continued violations by the Employee of the Employee's
obligations to the Successor which are demonstrably willful and deliberate on
the Employee's part.

               In the event that the Successor Corporation refuses to assume or
substitute for the Award, then: (i) the Optionee shall fully vest in and have
the right to exercise the Option or Stock Purchase Right as to all of the
Optioned Stock, including Shares as to which Optionee would not otherwise be
vested or exercisable; and (ii) Common Stock Equivalents credited to a Service
Provider's account under Section 12(b) shall convert into Shares (as provided in
Section 12(d)) immediately prior to the merger or sale of assets. If an Option
or Stock Purchase Right becomes fully vested and exercisable in lieu of
assumption or substitution in the event of a merger or sale of assets, the
Administrator shall notify the Optionee in writing or electronically that the
Option or Stock Purchase Right shall be fully vested and exercisable for a
period of fifteen (15) days from the date of such notice, and the Option or
Stock Purchase Right shall terminate upon the expiration of such period. If a
Common Stock Equivalent converts to Shares in such event, the Administrator
shall notify the Optionee at least fifteen (15) days prior to the consummation
of the proposed transaction. For the purposes of this paragraph, an Award shall
be considered assumed if, following the merger or sale of assets, the award
confers the right to purchase or receive, for each Share of Optioned Stock
subject to the Option or Stock Purchase Right or for each Common Stock
Equivalent, immediately prior to the merger or sale of assets, the consideration
(whether stock, cash, or other securities or property) received in the merger or
sale of assets by holders of Common Stock for each Share held on the effective
date of the transaction (and if holders were offered a choice of consideration,
the type of consideration chosen by the holders of a majority of the outstanding
Shares); provided, however, that if such consideration received in the merger or
sale of assets is not


solely common stock of the Successor Corporation or its Parent, the
Administrator may, with the consent of the Successor Corporation, provide for
the consideration to be received upon the exercise of the Option or Stock
Purchase Right, for each Share of Optioned Stock subject to the Option or Stock
Purchase Right, or upon conversion of each Common Stock Equivalent, to be solely
common stock of the Successor Corporation or its Parent equal in fair market
value to the per share consideration received by holders of Common Stock in the
merger or sale of assets.

        16.     Date of Grant. The date of grant of an Award shall be, for all
                -------------
purposes, the date on which the Administrator makes the determination granting
such Award, or such other later date as is determined by the Administrator.
Notice of the determination shall be provided to each Optionee within a
reasonable time after the date of such grant.

        17.     Amendment and Termination of the Plan.
                -------------------------------------

                (a) Amendment and Termination. The Board may at any time amend,
                    -------------------------
alter, suspend or terminate the Plan.

                (b) Stockholder Approval. The Company shall obtain stockholder
                    --------------------
approval of any Plan amendment to the extent necessary and desirable to comply
with Applicable Laws.

                (c) Effect of Amendment or Termination. No amendment,
                    ----------------------------------
alteration, suspension or termination of the Plan shall impair the rights of the
holder of any Award, unless mutually agreed otherwise between the holder of such
Award and the Administrator, which agreement must be in writing and signed by
the holder of such Award and the Company. Termination of the Plan shall not
affect the Administrator's ability to exercise the powers granted to it
hereunder with respect to Awards granted under the Plan prior to the date of
such termination.

        18.     Conditions Upon Issuance of Shares.
                ----------------------------------

                (a) Legal Compliance. Shares shall not be issued pursuant to the
                    ----------------
exercise of an Award unless the exercise or conversion of such Award and the
issuance and delivery of such Shares shall comply with Applicable Laws and shall
be further subject to the approval of counsel for the Company with respect to
such compliance.

                (b) Investment Representations. As a condition to the exercise
                    --------------------------
or conversion of an Award, the Company may require the person exercising or
converting such Award to represent and warrant at the time of any such exercise
or conversion that the Shares are being purchased only for investment and
without any present intention to sell or distribute such Shares if, in the
opinion of counsel for the Company, such a representation is required.

        19.     Inability to Obtain Authority. The inability of the Company to
                -----------------------------
obtain authority from any regulatory body having jurisdiction, which authority
is deemed by the Company's counsel to be


necessary to the lawful issuance and sale of any Shares hereunder, shall relieve
the Company of any liability in respect of the failure to issue or sell such
Shares as to which such requisite authority shall not have been obtained.

        20.     Reservation of Shares. The Company, during the term of this
                ---------------------
Plan, will at all times reserve and keep available such number of Shares as
shall be sufficient to satisfy the requirements of the Plan.

        21.     Stockholder Approval. The Plan shall be subject to approval by
                --------------------
the stockholders of the Company within twelve (12) months after the date the
Plan is adopted. Such stockholder approval shall be obtained in the manner and
to the degree required under Applicable Laws.


                                  RAMBUS INC.

                                1997 STOCK PLAN
                            STOCK OPTION AGREEMENT

        Unless otherwise defined herein, the terms defined in the Plan shall
have the same defined meanings in this Option Agreement.

I.  NOTICE OF STOCK OPTION GRANT
    ----------------------------

[Optionee's Name and Address]

        You have been granted an option to purchase Common Stock of the Company,
subject to the terms and conditions of the Plan and this Option Agreement, as
follows:

        Grant Number
                                            -------------------------

        Date of Grant
                                            -------------------------

        Vesting Commencement Date
                                            -------------------------
        Exercise Price per Share            $
                                            -------------------------
        Total Number of Shares Granted
                                            -------------------------
        Total Exercise Price                $
                                            -------------------------
        Type of Option:                          Incentive Stock Option
                                            ---
                                                 Nonstatutory Stock Option
                                            ---

        Term/Expiration Date:
                                            -------------------------
     Vesting Schedule:
     -----------------

        This Option may be exercised, in whole or in part, in accordance with
the following schedule:

        12.5% of the Shares subject to the Option shall vest six months after
the date of grant, and 1/48 of the Shares subject to the Option shall vest each
month thereafter so that 100% of the Shares subject to the Option shall be
vested four (4) years from the grant date, subject to the Optionee remaining a
Service Provider as of such vesting dates.


        Termination Period:
        -------------------

        This Option may be exercised for three months after Optionee ceases to
be a Service Provider. Upon the death or Disability of the Optionee, this Option
may be exercised for such longer period as provided in the Plan. In no event
shall this Option be exercised later than the Term/Expiration Date as provided
above.

II.  AGREEMENT
     ---------

        1       Grant of Option. The Plan Administrator of the Company hereby
                ---------------
grants to the Optionee named in the Notice of Grant attached as Part I of this
Agreement (the "Optionee") an option (the "Option") to purchase the number of
Shares, as set forth in the Notice of Grant, at the exercise price per share set
forth in the Notice of Grant (the "Exercise Price"), subject to the terms and
conditions of the Plan, which is incorporated herein by reference. Subject to
Section 17(c) of the Plan, in the event of a conflict between the terms and
conditions of the Plan and the terms and conditions of this Option Agreement,
the terms and conditions of the Plan shall prevail.

                If designated in the Notice of Grant as an Incentive Stock
Option ("ISO"), this Option is intended to qualify as an Incentive Stock Option
under Section 422 of the Code. However, if this Option is intended to be an
Incentive Stock Option, to the extent that it exceeds the $100,000 rule of Code
Section 422(d) it shall be treated as a Nonstatutory Stock Option ("NSO").

        2       Exercise of Option.
                ------------------

                (a) Right to Exercise. This Option is exercisable during its
                    -----------------
term in accordance with the Vesting Schedule set out in the Notice of Grant and
the applicable provisions of the Plan and this Option Agreement.

                (b) Method of Exercise. This Option is exercisable by delivery
                    ------------------
of an exercise notice, in the form attached as Exhibit A (the "Exercise
Notice"), which shall state the election to exercise the Option, the number of
Shares in respect of which the Option is being exercised (the "Exercised
Shares"), and such other representations and agreements as may be required by
the Company pursuant to the provisions of the Plan. The Exercise Notice shall be
completed by the Optionee and delivered to the Stockholder Relations Manager of
the Company. The Exercise Notice shall be accompanied by payment of the
aggregate Exercise Price as to all Exercised Shares. This Option shall be deemed
to be exercised upon receipt by the Company of such fully executed Exercise
Notice accompanied by such aggregate Exercise Price.

                No Shares shall be issued pursuant to the exercise of this
Option unless such issuance and exercise complies with Applicable Laws. Assuming
such compliance, for income tax purposes the Exercised Shares shall be
considered transferred to the Optionee on the date the Option is exercised with
respect to such Exercised Shares.


        3       Method of Payment. Payment of the aggregate Exercise Price shall
                -----------------
be by any of the following, or a combination thereof, at the election of the
Optionee:

                (a) cash;

                (b) check;

                (c) consideration received by the Company under a cashless
exercise program implemented by the Company in connection with the Plan; or

                (d) surrender of other Shares which (i) in the case of Shares
acquired upon exercise of an option, have been owned by the Optionee for more
than six (6) months on the date of surrender, and (ii) have a Fair Market Value
on the date of surrender equal to the aggregate Exercise Price of the Exercised
Shares.

        4       Non-Transferability of Option. This Option may not be
                -----------------------------
transferred in any manner otherwise than by will or by the laws of descent or
distribution and may be exercised during the lifetime of Optionee only by the
Optionee. The terms of the Plan and this Option Agreement shall be binding upon
the executors, administrators, heirs, successors and assigns of the Optionee.

        5       Term of Option. This Option may be exercised only within the
                --------------
term set out in the Notice of Grant, and may be exercised during such term only
in accordance with the Plan and the terms of this Option Agreement.

        6       Tax Consequences. Some of the federal tax consequences relating
                ----------------
to this Option, as of the date of this Option, are set forth below. THIS SUMMARY
IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO
CHANGE. THE OPTIONEE SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THIS OPTION
OR DISPOSING OF THE SHARES.

                (a)     Exercising the Option.
                        ---------------------

                        (i)     Nonstatutory Stock Option. The Optionee may
                                -------------------------
incur regular federal income tax liability upon exercise of a NSO. The Optionee
will be treated as having received compensation income (taxable at ordinary
income tax rates) equal to the excess, if any, of the Fair Market Value of the
Exercised Shares on the date of exercise over their aggregate Exercise Price. If
the Optionee is an Employee or a former Employee, the Company will be required
to withhold from his or her compensation or collect from Optionee and pay to the
applicable taxing authorities an amount in cash equal to a percentage of this
compensation income at the time of exercise, and may refuse to honor the
exercise and refuse to deliver Shares if such withholding amounts are not
delivered at the time of exercise.


                        (ii)    Incentive Stock Option. If this Option qualifies
                                ----------------------
as an ISO, the Optionee will have no regular federal income tax liability upon
its exercise, although the excess, if any, of the Fair Market Value of the
Exercised Shares on the date of exercise over their aggregate Exercise Price
will be treated as an adjustment to alternative minimum taxable income for
federal tax purposes and may subject the Optionee to alternative minimum tax in
the year of exercise. In the event that the Optionee ceases to be an Employee
but remains a Service Provider, any Incentive Stock Option of the Optionee that
remains unexercised shall cease to qualify as an Incentive Stock Option and will
be treated for tax purposes as a Nonstatutory Stock Option on the date three (3)
months and one (1) day following such change of status.

                (b)     Disposition of Shares.
                        ---------------------

                        (i)     NSO. If the Optionee holds NSO Shares for at
                                ---
least one year, any gain realized on disposition of the Shares will be treated
as long-term capital gain for federal income tax purposes.

                        (ii)    ISO. If the Optionee holds ISO Shares for at
                                ---
least one year after exercise and two years after the grant date, any gain
realized on disposition of the Shares will be treated as long-term capital gain
for federal income tax purposes. If the Optionee disposes of ISO Shares within
one year after exercise or two years after the grant date, any gain realized on
such disposition will be treated as compensation income (taxable at ordinary
income rates) to the extent of the excess, if any, of the lesser of (A) the
difference between the Fair Market Value of the Shares acquired on the date of
exercise and the aggregate Exercise Price, or (B) the difference between the
sale price of such Shares and the aggregate Exercise Price. Any additional gain
will be taxed as capital gain, short-term or long-term depending on the period
that the ISO Shares were held.

                (c)     Notice of Disqualifying Disposition of ISO Shares. If
                        -------------------------------------------------
the Optionee sells or otherwise disposes of any of the Shares acquired pursuant
to an ISO on or before the later of (i) two years after the grant date, or (ii)
one year after the exercise date, the Optionee shall immediately notify the
Company in writing of such disposition. The Optionee agrees that he or she may
be subject to income tax withholding by the Company on the compensation income
recognized from such early disposition of ISO Shares by payment in cash or out
of the current earnings paid to the Optionee.

        7       Entire Agreement; Governing Law. The Plan is incorporated herein
                -------------------------------
by reference. The Plan and this Option Agreement constitute the entire agreement
of the parties with respect to the subject matter hereof and supersede in their
entirety all prior undertakings and agreements of the Company and Optionee with
respect to the subject matter hereof, and may not be modified adversely to the
Optionee's interest except by means of a writing signed by the Company and
Optionee. This agreement is governed by the internal substantive laws, but not
the choice of law rules, of California.


        8       NO GUARANTEE OF CONTINUED SERVICE. OPTIONEE ACKNOWLEDGES AND
                ---------------------------------
AGREES THAT THE VESTING OF SHARES PURSUANT TO THE VESTING SCHEDULE HEREOF IS
EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (AND
NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED AN OPTION OR PURCHASING SHARES
HEREUNDER). OPTIONEE FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE
TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO
NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT AS A
SERVICE PROVIDER FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL
NOT INTERFERE WITH OPTIONEE'S RIGHT OR THE COMPANY'S RIGHT TO TERMINATE
OPTIONEE'S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME, WITH OR WITHOUT
CAUSE.

        By your signature and the signature of the Company's representative
below, you and the Company agree that this Option is granted under and governed
by the terms and conditions of the Plan and this Option Agreement. Optionee has
reviewed the Plan and this Option Agreement in their entirety, has had an
opportunity to obtain the advice of counsel prior to executing this Option
Agreement and fully understands all provisions of the Plan and Option Agreement.
Optionee hereby agrees to accept as binding, conclusive and final all decisions
or interpretations of the Administrator upon any questions relating to the Plan
and Option Agreement. Optionee further agrees to notify the Company upon any
change in the residence address indicated below.


OPTIONEE:                               RAMBUS INC.


- ------------------------------          --------------------------------
Signature                               Geoff Tate, President


- ------------------------------
Print Name


- ------------------------------
Residence Address


- ------------------------------