With the release of 3DMark Vantage, we are now getting announcements of the first "hotfix" aimed at users with ATI graphics cards.
According to the release notes this new 3DMark Vantage Catalyst hotfix brings performance enhancements for the entire HD 2000 and HD 3000 series of cards, in addition to the usual bug fixes. The hotfix is available for both the 32 and 64-bit versions of Windows Vista.
You might have some problems downloading this hotfix, but be patient, as DAAMIT's servers are overloaded. You can find some interesting info about these improvements here.
3DMark Vantage Hotfix