|I beat GTA:VC on an Athlon 600 with GeForce 2 graphics. Ran beautifully, despite the processor not "meeting" the minimum requirements.|
To the OP: are you sure your graphics drivers are installed and less than 6 years old?
Socket 939 | Dual-core Opteron 185 @ 3.2GHz | 4GB | 1.0TB | Win7 x64
GeForce GTX 460 1GB | X-Fi Ti Pro | A8N32-SLI Deluxe | Antec P182