Hmm, they perform as well as any other V2.
However...the best bit is the 'built in' heatsinks!
This means that with a nice 80mm cooling fan and (maybe) a Zalman fan mate or pyramid fan limiter...you'll be SET!
Set for what? ???
For REALLY smooth 1024x768 GLiDE gaming!
I've tested these cards in SLI and they run nice and smooth playing UT, Unreal and Return to Na Pali!
(which, let's face it was what the V2 was INVEVTED for, mwahahahaha!)
==edit==
Forgot to say that mine are currently idling in their boxes at the moment (my new mobo is NFORCE2 400 ULTRA, so no V2's allowed!)
Also, it's quite hard to get a matching pair of these (took me about 6 months to find the second one...)