Ubersampling in The Witcher 2

Solution
That should be okay if you don't mind averaging 30 to 40 FPS. Ubersampling is extremely demanding, and you won't get 60FPS solid, even with a 280x at your resolution, not unless you are willing to drop a bunch of other graphics settings.
I forgot to mention that although I did use it it with most everything maxed out and just the blurring effects disabled. The FPS was down and somewhat erratic. THis was using the 560Ti as I had mentioned. The game was playable for sure. The general consensus was to just disable ubersambling and most did.