The quality settings for the games were as follows:

Call of Duty 2 - Anisotropic filtering, 4xAA (in game), V-Sync off, Shadows enabled, a high number of dynamic lights, soften all smoke edges and an insane amount of corpses.

Company of Heroes - High shader quality, High model quality, Anti-aliasing enabled (in game), Ultra texture quality, high quality shadows, high quality reflections, Post processing On, High building detail, High physics, high tree quality, High terrain detail, Ultra effects fidelity, Ultra effects density, Object scarring enabled and the model detail slider all the way to the right.

F.E.A.R. - 4x FSAA (in game), maximum light details, shadows enabled, maximum shadow details, soft shadows enabled, 16x anisotropic filtering, maximum texture resolution, maximum videos, maximum shader quality.

Half Life 2: Episode 1 - High model detail, high texture detail, high shader detail, reflect all water details, high shadow detail, 4x multi-sample AA (in-game), 16x anisotropic filtering, v-sync disabled, full high-dynamic range.

Pretty much as high as you can crank it.

lol... its engineering sample vs 8800GTX factory overclock core speed@ 650Mhz (575Mhz standard) dude... & there no official drivers for ATi. lol ATi sucks?? Imagine without ATi, we can get cheap price from NVidia. For me the Guru3D is the best trusted sites for GC comparison, coz Guru3D done their review much more detail....
here's is the comparison HD2900XT VS 8800GTS....
Link