Difference between PCI-e 16x and AGP 8x?

[Trooper599]

Can anyone tell me the real difference between PCI-e 16x and AGP 8x?

I have been searching for recent benchmarks in games using both but I have only found fairly old articles that state there is not much of a difference at all.

Can anyone please provide me with some sites that are up to date and compare the two connections?

Thanks!

 

[mwmorph]

much more bandwith. too bad it isnt used up by today's games(they cannot saturate a agp8x bus). speeds will be same, all other thinbs being equal.

that being said, pci-e allows 77w on the bus instead of 33w fro agp so some moderately powerful(x800xl, 6600) cards dont need connectors.

also, pci-e is not based on the pci bus so there s less interferance chance with a soundcard or modem or lan card or something.

agp slots share bandwith with every other pci device no the board. PCI-e slots are independant. thewre is no sharing of bandwith between pci-e connectors or between pci-e and pci. each have a flexible number of dedicated pci-e bus channels(anywhere from 1-16 channels per slot, depending on how many slots you use since the chipset controlling the motherboard has a maximum number of pci-e channles[usually between 24 and 32 channle i think, split over 4 slots or so.])