What an increase between the XFX 8800GTS XXX 320Mb and the PNY XLR8 8800GT 512 Mb.... almost forgot to mention that the Quad was derated to 3.15Ghz using the PNY, from 3.6Ghz with the XFX!
Futuremark - ORB - Result Analyzer 
Someone needs to come up with an aftermarket cooler for the 8800GT - with the fan at 100%, the noise is worst than an F18 taking off on `burners...
John
__________________
Main: GA-X58-Extreme - i7 920 - TX750W - Raptor - 3Gb DDR3-1333 Triple-Channel - GTX260 SLI'ed - TRUE - P182
HTPC: M3A78-EM - 5000+ X2 - HX520W - 'cuda 1Tb - XP2-5300 2x512Mb - 9800GT - SI-128 - Prelude - Moneual 932B