Just got my 2 nvidia 460 1gb evga cards. games are running really well, crysis, metro, gt4 , fallout nv and others are running great. Crysis and metro are so much smoother now i can hardly belive it. Question i have is about physx. I have 1 game mafia 2 and for some reason setting the physx to cpu instead on one of the gpu,s seems to give me a better performance of that game. Is that the case for everyone? will i get a better physx performance using the cpu and not the gpu's?