No it doesn't, and doesn't on any NV hardware since DX10.1 isn't supported. The skipped render pass/20% AA improvement only exhibits itself in DX10.1 mode, which by default requires 1) Vista 2) SP1 and 3) ATI HD 3000 series hardware. Any problems related to this DX10.1 glitch wouldn't impact NV as it simply cannot. I did not see any specific mention of this problem on NV hardware by the Devs or in that link.
I have a feeling the 8800-series problems relate to the 174.XX beta drivers as they are clearly hit and miss with AC based on Guru3D forums feedback. Many users indicate crashes in either DX9 or DX10 or both, but 169.44 runs the game fine. I've had no problems with 174.32, 174.85 and 174.93 in AC or other titles, but 174.74 gave me alt-tab crashes and another gave a BSOD on boot. If I had to guess that's the reason 174 have not been WHQL'd as a unified driver package, as there still seems to be lingering problems with older 8-series parts.
Again, the game runs spectacularly at 1920x1200 max everything, no AA (disabled in menu) 16 AF between 30-60FPS with Vsync on. If every game ran as well and looked as good as AC I wouldn't have anything to complain about.