Hey I have the XFX R7850 Ultra OC 1GB Version of this card Core OC to a weak 1050mhz no memory oc, I had high temps with the stock cooler and shroud so I asked XFX and ATI about it and they stated that 80c is fine 90c is cooking and 100c is fry point. That said I put the ARCTIC Accelero TT II VGA Cooler on it and now I peak at 50c on a hot day running BF3 on ultra settings.