I have heard some crazy things about this. I have even heard by a few that a 6600 gt would beat a X800 XL. here are some (many) benchmarks that people who say the 6*** series beats the 8** series should look at:
http://www.xbitlabs.com/articles/video/display/2004-27gpu2.html
Sorry, Im an ATI fanboy...
http://www.xbitlabs.com/articles/video/display/2004-27gpu2.html
Sorry, Im an ATI fanboy...