Pardon me: toned down framerate and graphix on the xbox???

I thought the xbox version, though at a lower resolution, would kick the pants off the pc version when it comes to the quality of the graphix ....and maybe the framerate also?

Anyway the game is fantastic on the PC...Single player part has a very good story and is great fun to complete but the MP part of the game is truly brilliant.....played that for more than half a year.