Supreme Commander is even more favorable to the GeForce 8800GT which manages to be, in this case, only slightly less powerful than the 8800GTX: between 11 and 14% only, except in 1600 x 1200 where the gap is only about 3%, which is the difference in raw power between those two cards! The HD 2900 XT as well as the 8800GTS 320 MB are totally outperformed, and the 8800GT is no less than 143% more efficient than the previous most powerful mid-range card in 1600 x 1200, the 8600 GTS.