Oh, I'm pretty sure. A GeForce 256 could do over 10 million polys a second, and at 640x480 there is no worry of memory bottlenecks, so doing it wouldn't be a problem, expecially if they were to custom tailor it to my PC, just like GT3 is custom made for the PS2. Heck, with 32 megs of memory it could probably do it noticeably better.