Since video card temperatures and the heat generated by next-generation cards have become an area of concern among enthusiasts and gamers, we want to take a closer look at how these cards generate heat under load.
In order to get proper temperature readings we used Catalyst Control Center to monitor the card at idle and then again running ATI Tool. After letting ATI Tool run for a good 20 minutes the GPU temperature was found to be running a constant 83C, which is warmer than we expected for this dual-slot card.
Test Results: The HIS Radeon HD 4870 graphics card is dual-slot and features a dual heat-pipe cooler, but the card is still pretty hot and toasty. It looks like leakage on the 4000 series of cards might be higher than that on the 3000 series, but only time will tell.