ShaderMark 2.1 and RTHDRIBL
ShaderMark 2.1
ShaderMark 2.1 ranks X800 and 6600 GT almost equal in most tests, with the odd few swinging either way. With X850 PRO and 6800 GT, it's more clear cut with the NVIDIA board having the edge in SM2.1's tests, especially those that involve FP blending or filtering.
RTHDRIBL
A classic test that shows off the effect of hand-written shaders on an architecture whos performance is somewhat compiler-driven.
NVIDIA's shader compiler has a really hard time, not living up to theoretical potential.
