Test: Supreme Commander, S.T.A.L.K.E.R
The Supreme Commander results are much like those recorded in Prey with neither card pulling enough advantage. Using the high quality in-game settings limited both graphics cards to 1024x768 for playable frame rates.
S.T.A.L.K.E.R strongly favored the GeForce 8600 GTS, allowing it to deliver perfectly playable performance at 1600x1200 with maximum visual quality settings. At this resolution the 8600 GTS was about 60% faster than the Radeon HD 2600XT. A similar performance margin was also seen at 1280x1024 and 1024x768.