Originally Posted by Blameless

In my experience, the DuOrb runs near it's limit on the faster G92 cards, and past it's limit on G80 cards. If you go well above stock, or mess with voltages, you will saturate the heat carrying capacity of the two pathetic heatpipes (and possibly fans) on the DuOrb.

FurMark does run hotter than almost anything else. It's more strenuous than Crysis, ATiTool's artifact scanner, 3dMark, or just about anything else. The only program I've seen come close is ShaderMark.

This is why I like FurMark so much. I know nothing can (currently) load a card better.

My 8800GTS 512 at 783Mhz core, 1836MHz shader, and 999MHz memory, tops out at around 60C in a 25C room after several hours of FurMark (I find lower resolutions with no aa/af produce the most heat). I use an Arctic Cooling S1 and a 55cfm 92mm fan.

With a DuOrb, I never plateau on temperatures, esp on my older G80 card. Temps start off excellent, but they keep going up and up and up, till something craps out.