Command & Conquer 3
The game has a frame rate limiter, so you should look at the min speed numbers. The accuracy of control over the war units depends on the min speed in the first place.
The considerably higher clock rates of the EVGA e-GeForce 8800 GTS 320MB KO ACS3 indeed ensure it a certain advantage in terms of minimum speed, at least at a resolution of 1280x1024 pixels. The difference between 23fps and 25fps is elusive, yet it’s good to have some reserve of speed.
Otherwise, the six versions of GeForce 8800 GTS 320MB are all doing well enough. All of them, together with the senior model and the Radeon X1950 XTX, allow playing in every resolution including 1920x1200. The GeForce 7950 GX2 is hardly suitable for playing Command & Conquer due to some problems with support of this game in SLI mode: its minimum speed is too low even in the lowest display resolution, so you cannot avoid slowdowns and jerkiness running the game on that graphics card.