Sapphire Radeon HD 7950 OC @ PureOverclock
 

The Sapphire HD 7950 OC is the overclocked version of the AMD design, and also comes with a customized air cooler. Is it strong enough to fend off the GTX 580? Framerates tell some of the story, but what about temperatures? Power consumption? Gaming value? Let's take a closer look at the Sapphire HD 7950 OC and answer those questions for you.

http://www.pureoverclock.com/article1430.html