Vertex and Pixel Lighting
ATI chips used to do vertex and pixel lighting faster than NVIDIA, but the new driver from NVIDIA changes the rankings dramatically. The GeForce FX 5950 Ultra is a little better than the RADEON 9800 XT in the low resolution and competes with it in the high one. The mainstream GPUs perform at the same level; the difference between their results is sometimes less than 1fps. The ForceWare driver does its job well – boosts the performance of the GeForce FX architecture in shader-heavy scenes. At least, it does well in the AquaMark3 tests.
When FSAA and AF are enabled, the high frequencies and the shader code optimizer in ForceWare 52.16 can do nothing to help the GeForce based cards to catch up with the GPUs from ATI Technologies.
3D Volumetric Fog
The GeForce FX GPUs, including the mass models, are better at rendering volume fog. The programmers who wrote the ForceWare driver solved the problem: the latest chips from NVIDIA perform much faster with the new driver.
Again, the VPUs from ATI are faster under high workloads, although the GeForce FX 5950 Ultra is on the level of the RADEON 9800 XT in 1024x768.