Pulling out the TES 1350A Sound Level Meter we find ourselves quickly yelling into the top of it to see how loud we can be.
After five minutes of that we get a bit more serious and place the device two CM away from the fan on the card to find the maximum noise level of the card when idle (2D mode) and in load (3D mode).
While heat increases only slightly, it seems to be because the fan is working a bit harder and pumping out a bit more nose. At over 70 dB the cards are clearly audible, but the most important thing to remember is that you're only going to get these kinds of noise levels if you choose to not only overclock your cards, but overclock them with the help of more voltage.
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