Far Cry, Painkiller
Far Cry
Vendor: UBI Soft - (Website)API: DirectX 9.0
Pixel Shader Version Supported: Mix PS1.1, PS1.4, PS2.0 with PS2.0 forced
If OpenGL is better for NVIDIA's cards, D3D is generally considered ATI's domain. Crucial's X800 PRO comes close to matching the 6800 Ultra's performance at the middle setting. At the highest setting, though, a lack of pixel-pushing and bandwidth power begins to tell.
Painkiller
Vendor: People Can Fly - (Website)API: DX9.0
Pixel Shader Version Supported: Mix, unknown versions
The Painkiller flyby test is smooth on each card. There's little to choose between them on the above graph and the performance, visually-speaking, is impossible to distinguish. Again, the X800 PRO is very, very close to NVIDIA's 6800 GT's performance. It seems as if both companies' high-end cards are evenly matched in Painkiller.