7600GT...oh hell yeah. The 9600GT is fast. I have been using it on my 40" Samsung HDTV to watch DVDs mostly. I took it out and installed my 8800GTS 640. I can't remember the exact resolution, but something near 16 x 12. I'm not gaming, but the 9600GT performs better at that resolution (for me anyway) than the 8800GTS. So, yeah there will be a noticable difference from your 7600GT...maybe like night and day! 8)