Temperature Testing

Since video card temperatures and the heat generated bynext-generation cards have become an area of concern among enthusiastsand gamers, we want to take a closer look at how the Radeon HD 5670series does at idle and under a full load.

ATI Radeon HD 5670 512MB Idle Temperature:

Sapphire Radeon HD 5670 1GB Idle Temperature:

At idle the ATI Radeon HD 5670 512MB video card with the reference designed cooler had a decentidle temperature of 36C. As you can see from the screen shot above, theidle state of the Sapphire Radeon HD 5670 1GB video card with the larger Arctic Cooling HSF had an idle temperature of just 31C. This is a temperature drop at idle of 5C, which is amazing. The GPU core clock frequency on both cards drops down to just 157 MHz to help conserve power and lowertemperatures.

ATI Radeon HD 5670 512MB Load Temperature:

Sapphire Radeon HD 5670 1GB Load Temperature

We fired up FurMark and ran the stability at 640x480 which wasenough to put the GPU at 100% load in order to get the highest loadtemperature possible. This application also charted the temperatureresults so you can see how the temperature rises and levels off, whichis very nice. The ATI Radeon HD 5670 512MB graphics card topped out at 74C. The Sapphire Radeon HD 5670 1GB graphics card with the Arctic Cooling GPU cooler maxed out at 56C. These are great temperatures and just to compare some results the EVGA GeForce GT 240 SuperClocked video card maxed outat 73C when we reviewed that model. The fan on all of the video cards wereleft on auto during temperature testing and were both quieter than the CPU cooler on our test system.