OK, Unreal Tournament Benchmark Tool Version 0.2.1.0 (didn't check to see if there's a newer version)

Hardware:
q6600 @ 3.6 ghz
8 gigs ddr2 @ 800
8800gts g92 @ 784/1960 1013mem
Vista x64
177.35 driver w/ modded .inf for folding (CUDA) & 177.39

Stock settings, 1920x1200, DX9 (forgot to do DX110), texture and level details 1, software settings: 12, 60 (no idea what this means)

Here's the results:


First is with the driver, 2nd is without.
About 7 FPS better. Is that what everyone else gets?
The physX does seem to smooth out the look entirely.

I forgot to do DX10 and for now, I don't feel like uninstalling, running 10 tests, then reinstalling. I'll do this later if anyone is interested.