Hm, except for the different Motherboard and your WinXP, we're using the same setup.
I'm gathering some infos as to why it happens on me, seems not normal.
It's just 3D Quark, but its typical Benchmark performance seems nominal, I get 11299 Quarks in 3D Quark 2001SE b330 out of it (which seems reasonable).
If you can please look for something out of the order in the Detailled results here :
http://service.futuremark.com/compare?2k1=8084303Maybe you notice something unusual, that would indicate something's wrong. Otherwise, I'll just roll-back to my 100% clean HardDrive Image, and re-test everything
(a quick re-test with Aquamark3 is also within ~2% of my known figures for that Card, so that looks okay)