http://techreport.com/etc/comparo/graphics/

This page doesn't list the 850 XL, but the XT has a core clock of 520 MHz
with 16 pixel pipelines.

The fastest AGP nVidia card is the 6800 Ultra, with 16 pipes and a clock of
400 MHz. (The page also lists a 450 MHz overclocked Ultra, which may be the
rare Ultra Extreme.)

On the other hand, the raw numbers don't necessarily tell the whole story.
The Doom 3 engine notoriously favors the nVidia cards:

http://www.extremetech.com/article2/...1634115,00.asp

The 850 XT doesn't have much higher specs than the 800XT (500 MHz core), so
hope that it's similar.

Newer ATI Catalyst drivers may change the story, but I didn't find a
comparable test online.

If you notice the AGP 6800GS, note that it's closer to the original vanilla
6800. (The PCI-E 6800GS is closer in performance to the original 6800GT, so
it's a decent bargain, for those with PCI-E systems.)


Address scrambled. Replace nkbob with bobkn.

"Rick S." wrote in message
ink.net...
As per subject. Looking to upgrade a Radeon 9700 Pro on a
3.8GHz AGP system. Does (or did) Nvidia make a controller
for AGP that's as fast as ATI's X850 XL?