As I have never had a PC, or bought a video card. I have no idea how to compare them.
I am thinking of getting TestDrive Unlimited when it comes out (can run in XP with Bootcamp) however I have no Idea if the GPU in my iMac measures up to what people are saying you need to have it running well.
I have a CoreDuo (2ghz) with a 20" screen, the System Profiler, says the GPU is a ATI Radeon X1600, Ram shouldn't be a prob as it's got 1.5 GB.
People say you need a Ati Radeon 9800? is this some different numbering system they use for retail cards, as a posed to the built in stuff?