Stefan Mileschin

The Radeon HD 7770 Black Super Overclocked Edition Double Dissipation is a video card from XFX featuring the new "Cape Verde" mainstream GPU. The card is cooled by the new dual fan cooling system from the same manufacturer, which is both efficient and silent, the GPU reaching no more than 65 degrees after 15 minutes of stress testing in Furmark. The card comes pre-overclocked and still has some headroom left without the need of raising the stock voltage.

http://www.madshrimps.be/articles/article/1000272/