Galaxy puts this on their GTX 580 and charges less than competing reference designs from EVGA. I see temps of 64C @ 900Mhz/1.075V in Battlefield 3. This is in a small Fractal Design Define R3 case w/ only 3 1200RPM Scythe SFLEX fans. It's an amazing cooler, but sadly 900 seems to be all it will do.