CF gave me a "brutal" boost in Bioshock: 160 fps in DX9, all settings high on 1280x1024. No improvement at all (far from it!) in COD4, Crysis, Race 07. Using driver v. XP32-64_8-43-1-1-071113a-055588E (Crysis "Hotfix"). Hope there'll be some new drivers soon!