Originally Posted by welle
the quality of the nvidia linux driver is crap compared to the windows driver. Yesterday i compared nouveau with the nvidia blob and the nouveau driver works much better - animations in kde run smooth instead of stuttering . the only disadvantage is that svideo out doesnt work anymore
IME the nvidia driver doesn't up-clock fast enough for initial smooth animations. When left on the highest setting, animations are always smooth for me.
But if they're never smooth in your case, then there could be a bug somewhere.