Here is why. 3Dmark 01 is more influenced by cpu and gpu, instead of just gpu. most dialup modems use your cpu to do all the calculations, and because pci is so slow, that portion of the cpu is used for alot longer of a time, slowing the whole system down a good bit. when running 3dmark01 it would no doubt score lower. Run 3dmark 03 and see if there is still a score difference.