|EVGA GeForce GTX 580 Classified Video Card|
|Reviews - Featured Reviews: Video Cards|
|Written by Austin Downing|
|Sunday, 02 October 2011|
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EVGA GTX 580 Classified Temperatures
Benchmark tests are always nice, so long as you care about comparing one product to another. But when you're an overclocker, gamer, or merely a PC hardware enthusiast who likes to tweak things on occasion, there's no substitute for good information. Benchmark Reviews has a very popular guide written on Overclocking Video Cards, which gives detailed instruction on how to tweak a graphics cards for better performance. Of course, not every video card has overclocking head room. Some products run so hot that they can't suffer any higher temperatures than they already do. This is why we measure the operating temperature of the video card products we test.
To begin my testing, I use GPU-Z to measure the temperature at idle as reported by the GPU. Next I use FurMark's "Torture Test" to generate maximum thermal load and record GPU temperatures at high-power 3D mode. The ambient room temperature remained at a stable 20°C throughout testing, while the inner-case temperature hovered around 36°C.
FurMark does two things extremely well: drive the thermal output of any graphics processor higher than applications of video games realistically could, and it does so with consistency every time. Furmark works great for testing the stability of a GPU as the temperature rises to the highest possible output. The temperatures discussed below are absolute maximum values, and not representative of real-world performance.
AT 71C the custom cooler utilized by EVGA for the Classified is quite effective giving a 12.4% boost in performance compared to a stock GTX 580. During Furmark the 8cm fan will spin up a bit hitting around 45-50% usage but still being silent. This means that even on Air the EVGA GTX 580 Classified will have lots of room left for overclocking which we will be doing a separate article on the future.