Call of Duty 2
Image Quality Settings - 0xAA 0xAF

At our base IQ setting, for the first two resolution steps, Radeon X1950 XTX matches or betters 8800 GTX. GeForce 8800 GTS, 7900 GTX and 7950 GX2 trade blows initially, with the 7900 GTX falling off at higher resolution, with Radeon X1950 XTX ahead or mathcing them all for the duration of our base IQ test. At the upper end of the resolution steps, GeForce 8800 GTX pulls away from the chasing pack, it's superior specification manifest in the performance results.
Image Quality Settings - 0xAA 16xAF

Image Quality Settings - 4xAA 0xAF

Image Quality Settings - 4xAA 16xAF

General Conclusions
At higher levels of AA and AF, the basic trends are mirrored as performance drops off in each case. AA application is the obvious consumer of performance for all the boards, and Radeon X1950 XTX is 2nd only to 8800 GTX across the board, proving that R580 with a high-bandwidth set of memories still has some rendering chops when compared to NVIDIA's new products.
Call of Duty 2 highlights that software plays as large a part in the overall picture as hardware.