90% of my PC games run up to Shader Model 2.0 so they'll still run on my old Dell Dimension XPS. I found a list here. That would explain why the Radeon 9800 XT is expensive for its age. If I were to upgrade, it's cheapest to do a Radeon X1600 XT off ebay. Right now, I'm playing Fallout 3 and Dreamfall The Longest Journey (1) (2).