What caused this "AMD has bad drivers" opinion? At first I thought it was an ongoing joke but I guess not. I have a 5870 and other than problems with Battlefield Bad Company 2 (grey screens for a month or two) and Rage at release (every thing), I can't think of any other problems I had.
Let me count the ways:
-prototype shadows still borked completely after all these years, never fixed...
-skyrim doesn't scale at all
-saint's row 3 super low fps
-homefront unplayable performance degrading even on lowest setting
-rage (well rage had stutter problems on both platforms, nevertheless)
-deus ex HR stutter
-witcher 2 drunkmode slowdown, was never fixed on hd 48xx series! only fixed on the newer cards (the usual fuck you from amd for 'legacy' support if you can call 3 years legacy)
+microstutter in a miriad of games even on single gpu.
There's more but these are the ones that come to mind.
Amd has always had a bit more problems than nvidia but lately it completely takes the piss.
Then there's the fact that nvidia has way more awesome supersampling AA options and way better SLI support.
My old radeon 9800 pro was released like 2 years before vista was and it NEVER got vista drivers, ever.
You always had to run some broken xp driver and the 9200 cars don't work at all.
Amd is terrible with support, they forget their hardware exists within 2-3 years after release, you can count on that from my experience.