don't expect skyrim to have better graphics from witcher 2. Console fans is the bethesda target and pc fans is cd projekt target, hope you get it.
Well, that is certainly the case at the moment, however, a console port for The Witcher 2 is looking more and more likely. Will be interesting to compare the console graphics of Skyrim and TW2, see which is graphically(sp) superior then.
A point to bear in mind is that The Witcher 2 is a DirectX 9 game, and Skyrim will be DirectX 9 as well. So there's the possibility that Skyrim will have graphics on a par with The Witcher 2.
On the other hand, Skyrim is likely to have to support much, much greater draw distances, as well as large numbers of physics enabled objects. While a lot can be done with level-of-detail models to help keep nearby objects looking beautiful without killing the graphics hardware, all those extra models will have to be held in memory and shunted across to the graphics hardware. And handling the physics objects will put an additional load on the CPU and memory.
I'll be very surprised if Skyrim matches The Witcher 2 in graphics rendering (design and artstyle are a different matter), just because it's making extra demands on the hardware resources that The Witcher 2 doesn't even try to do.