its not really expected to show any difference in performance..
unless the PCI-E version is a faster card in itself..
the difference between AGPx4 and AGPx8 is usually non existant and
neglectable at best, and that is a doubleing from 1 to 2 Gb/sec..
suggesting that 4Gb/sec wont show any further improvement..
but, in the future apps can be made to draw advantage from it i guess..
tho it would prolly require it to become mainstream first..
When, i dunno..
i guess there wont be a huge rush with the low PCI-E ready computers
with the users, and the fact it wont showcase any peformance leaps in
anything other then possibly HDTV video editing..