I've recently installed The Witcher on my AMD 4800, and as this runs Oblivion very well, I expected a similar
enjoyable experience. I quickly intalled the latest update(1.2) and started playing. The intro was probably one
of the most appealing I've ever seen, with great production values and a treat for the eyes. I set the graphics
options down to medium level to ensure I got good performance for my early experience.
The start of the game, where you learn the basic skills, was a bit laboured, but probably necessary to introduce the different controls. Once into the game proper I really enjoyed the general look of the game, it really evoked a medieval environment, and the slightly "adult" theme, with some mild sex and language raised it above the often anodyne nature of other RPGs.
I encountered a few system bugs, with both sudden application failure(back to Windows) and system failure and rebooting. The graphics performance was generally good but playing dice always caused problems, both during the dice game and subsequently. Saving the game, exiting and then restarting restored the perfomance, suggesting that there are bugs in the dice subgame that affects memory(possibly virtual) rather than the environment detail that gets saved. At least one of the reboots was during a dice game.
Leaving aside the bugs, the general experience was rather enjoyable. The graphics are really earthy and realistic, the script is more involved than most RPGs(although essentially fairly linear), the sound is excellent, and although the English dialogue contains some spelling/grammar errors it's usually well thought out. I liked the advancement tree and the multitude of choices the player has available. The limited availability of some resources adds to the challenge and the moral choices are often ambiguous, much like real life!
Overall, I'd happily recommend this game, although you will need a reasonably high spec machine to truly enjoy the graphics delight