The Difference Between Good and Ugly

Why is it that the San Andreas port to the X-Box looks so much better than the port to the PC? One would be led to believe that, at a point in time which graphics cards are getting nearer and nearer to photo-realism, the images shown on what should be a state-of-the-art graphics card should be look ten times better than the images shown on a limited console graphics engine. But alas, this is apparently not the case.

Perhaps Norton was running a virus scan in the background while the person taking the screenshots was playing San Andreas.