For my money NVidia outstrips Ati any & every day
Remember, Nvidia are the people behind the NForce Chipset
I have used NVidia chipset graphics cards for Many years and have no complaints whatsoever
Fast, smooth, reliable, graphics engine is awesome, what more can I say?
Also, if you have a TFT monitor with an auto setup button, they have a flat panel calibration screen in their drivers