Yeah, I wasn't really comparing them, I know they are in two completely different catagories.
The 5850's do have a high pitched 'whine' though unfortunately. Might not bother you but it makes me feel like someones driving a drill in my left ear
I hope I get used to it. I've read about loud noise on several of them (asus was one), just the fan design I guess. I could handle a loud noise, knock, clatter, etc.. But high pitched sounds can be iritating.
It's not even that loud, just high pitched.