Section 906 Certifications
I, Charles E. Porter, the Principal Executive Officer of the Funds listed on Attachment A, certify that, to my knowledge:
1. The form N-CSR of the Funds listed on Attachment A for the period ended June 30, 2008 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2. The information contained in the Form N-CSR of the Funds listed on Attachment A for the period ended June 30, 2008 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A.
Date: August 27, 2008
/s/ Charles E. Porter
______________________
Charles E. Porter
Principal Executive Officer
Section 906 Certifications
I, Steven D. Krichmar, the Principal Financial Officer of the Funds listed on Attachment A, certify that, to my knowledge:
1. The form N-CSR of the Funds listed on Attachment A for the period ended June 30, 2008 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2. The information contained in the Form N-CSR of the Funds listed on Attachment A for the period ended June 30, 2008 fairly presents, in all material respects, the financial condition and results of operations of the Funds listed on Attachment A.
Date: August 27, 2008
/s/ Steven D. Krichmar
______________________
Steven D. Krichmar
Principal Financial Officer
| Attachment A | |
| N-CSR | |
| Period (s) ended June 30, 2008 | |
| Putnam Europe Equity Fund | |
| Putnam International Equity Fund | |
| Putnam New Opportunities Fund | |
| Putnam Small Cap Growth Fund | |
| Putnam International Growth & Income Fund | |
| Putnam Discovery Growth Fund | |
| Putnam Variable Trust | |
| Putnam VT American Government Income Fund | |
| Putnam VT Discovery Growth Fund | |
| Putnam VT Diversified Income Fund | |
| Putnam VT Equity Income Fund | |
| Putnam VT The George Putnam Fund of Boston | |
| Putnam VT Global Asset Allocation Fund | |
| Putnam VT Global Equity Fund | |
| Putnam VT Growth and Income Fund | |
| Putnam VT Growth Opportunities Fund | |
| Putnam VT Health Sciences Fund | |
| Putnam VT High Yield Fund | |
| Putnam VT Income Fund | |
| Putnam VT International Equity Fund | |
| Putnam VT International Growth and Income Fund | |
| Putnam VT International New Opportunities Fund | |
| Putnam VT Investors Fund | |
| Putnam VT Money Market Fund | |
| Putnam VT New Opportunities Fund | |
| Putnam VT New Value Fund | |
| Putnam VT Research Fund | |
| Putnam VT Small Cap Value Fund | |
| Putnam VT Utilities Growth and Income Fund | |
| Putnam VT Vista Fund | |
| Putnam VT Voyager Fund | |