4850 cant be recommended card power for this game!
Too low?
No, 4850 seems fine for high details, just not max.
Recommended =/= max settings.
Theres hardly ever been any games over the last few years that even come close to requiring the potential that the 4800 series has.
. Move over Crysis we got a new kid on the block for bringing PC's to there Knees. Hope someone does a thread on The Witcher 2 UBER SETTINGS benchmarks 

otherwise i wouldve bought hard copy myself