This level contains open areas as well as caves lit by numerous light sources. Lighting is calculated on the per-pixel basis.
The AX800 PRO finds it hard to contend with the GeForce 6800 GT that has more pixel pipelines and a certain speed bonus from version 3.0 pixel shaders employed on this level. Overclocking the AX800 PRO doesn’t help much here.
The “eye candy” mode with its full-screen antialiasing and anisotropic filtering is another matter: the AX800 PRO takes its revenge of the GeForces. It roughly equals the GeForce 6800 GT at the nominal frequencies and the GeForce 6800 Ultra at the overclocked frequencies.