Originally posted by diabloII
pci-express uses 16x bus while agp uses up to 8x
games don't even use up to 8x, so they perform the same
here's something a lot of people get confused with.
people think that PCI-E 16x is twice as fast as AGP 8X, because they see 16 as twice as big as 8.
this is not really true. PCI-E speeds are their own speeds. PCI-E 16x means that there are 16 serial connections to and from the card. 1X means one serial connection to and from the card (not one that sends and recieves, but rather, one that sends and one that recieves)
AGP is its own speed also. AGP was made because the bandwith of "normal" PCI was not enough for the cards. AGP 8x means 8x the bandwith of the original AGP.