We measure temperatures with diodes and our Raytek Laser Temp Gun 3i LSRC/MT4 Mini Temp gun for verification. Room ambience in our labs is kept to 25c with air conditioning to ensure accurate results.
To stress test we run Crysis at Enthusiast settings at 2560×1600 and then use Furmark. Furmark is a synthetic test and not really indicative of ‘real world’ conditions but it is interesting nontheless.
The cooler on the Powercolor card is doing a great job, with temperatures never hitting 70c when gaming. Our Furmark test shows that the Powercolor manages to keep the card at 76c while the reference board is running 12c hotter.