I stay at home and look after the children rginal levitra In fairness to AMD, the R9 280X we were sent for testing was slightly overclocked, with a 1,050MHz base clock versus 1,000MHz, thus the need for extra cooling. You can see it in the pictures on this page, outfitted with a big heat sink and two fans. The reference-board version of the R9 280X, on the other hand, which you can see in inset images on the next two pages, is a one-fan design and might well be quieter.