Asus 6600GT SLI -
SLI support in games is a total different story, the NVIDIA drivers work in two ways: in AFR (Alternate Frame Rendering) or in SFR (Split Frame Rendering) mode. The first method (AFR) will render the first half on the first card and the second half on the other card. The other method (SFR) splits every frame in two pieces and each card draws one piece. Which method is used depends on each game; NVIDIA selected 100 games and created profiles for each game. If there is no profile for a game then the NVIDIA driver will NOT use SLI. We didnt encounter any problems in the selected tests, but you can always create your own game profiles if there is none present.