XFX GeForce 6600GT PCIe Reviewed
 

http://www.vr-zone.com/?i=1635&s=1

"For our overclocking tests, we achieved a maximum core speed of 544MHz and maximum memory speed of 547MHz (1.094GHz effective). We ran a 3DMark03 game test loop for 30 hours straight at these speeds, and saw no artifacting throughout or after the test loop."


[M] PCIe roundup including XFX 6600GT
http://www.madshrimps.be/gotoartik.php?articID=284