I have a GeForce 4 Ti 4400 on my Athlon box, and it sure does do an impressive job. But in terms of quick cards, the ATI Radeons seem to be leading the way in terms of performance. A PC mag I read recently 3D Marked a P4 3.06Ghz and ATI Radeon 9700 (I think thats the number) and got a wopping 15000+. Now that's damn impressive.