EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference, in the Registration Statements on Form S-8 (Nos. 333-56322, 333-55974, 333-54188, 333-40154, 333-40152, 333-87322 and 333-91124) of Marvell Technology Group Ltd., of our report dated February 26, 2003, relating to the financial statements, which appears in this Form 10-K. /s/ PRICEWATERHOUSECOOPERS LLP PricewaterhouseCoopers LLP San Jose, California May 1, 2003