Summary: First things first, I got two of these to run in sli. I also have two xfx 5870's so I can do a direct comparison. In sli the 470's are faster than the 5870's in crossfire. I run two monitors in 1920x1080. In all bench marks the 470 sli system was faster. Not a lot faster - in some cases just a few fps. These things get hot. Like really hot. During the Resident Evil 5 dx10 benchmark loops the primary got over 101c.