I owned a Radeon 64MB VIVO a while back, and while I thought it was a terrific card, the drivers were just a little too unstable. Mind you, they were good and fast, and ATI was at one point, ehem, **ak*ng new ones on a weekly basis, the card would require some fiddling around with to get it to run as I'd wanted it to. Most games worked, some didn't. Overall, I never the impression that their drivers were as polished as Nvidia's. Very good, but not quite there yet. As it stands I currently own a Gainward Geforce2Pro 450 Golden Sample, which has run like a dream since day one.
As to the issue of image quality 2d and 3d, all resolutions up to 1280X1024, you couldn't tell them apart (of course Gainward has this darn tendency to use 'quality' 2d filters...bastards.

) At 1600X1200, the Radeon took a slight lead, particularly in the corners, nothing huge, but to discerning eyes noticable. Gainward's Geforce 3 lineup is supposed to have sharper 2d quality, but since I don't own one, I couldn't verify it for ya. As to 3d image quality, in all honesty it comes down to preference in terms of color saturation. The Radeon has a heavier saturation, simple as that. If that's what you want, shalom. The Geforce's image quality looks sharp and vibrant, and the saturation is excellent, if a bit more realistic then that of the Radeon's. And again, this is just a Geforce 2, as the Geforce 3's are supposed to be even better looking. DVD quality is a little clearer on the Radeon series as ATI is still the king at that.
Overall, I've had a more pleasurable experience with Nvidia's cards then with ATIs...and this is coming from someone who swore that after 3dfx (driver kings!!!) went under, I wouldn't touch Nvidia's PCBs with a 10ft pole, so I grabbed an 11ft pole and bought a Radeon.

Nvidia and ATI both make great cards, but its Nvidia's driver team that wins it for them.
Course, I could be wrong.
