Bjorn3D takes a look at the Leadtek WinFast PX7900 GTX TDH Extreme, which is a factory overclocked GeForce 7900 GTX that features NVIDIA's reference cooler.

Recall that the NVIDIA reference spec clocks for the 7900 GTX are 650MHz for the core and 1.6GHz (effective) for the memory. The Leadtek 7900 GTX Extreme comes out of the box at 675MHz for the core and 1.66GHz for the memory. Several companies are pushing the 7900 GTX a bit further, so I figured I had some room to get at least a little higher.

I installed Coolbits and let it auto-detect overclock frequencies. The results that came back were some of the most ludicrous I've ever seen Coolbits come up with - 925MHz for the core and 2GHz for the memory! Obviously, I wasn't going to shoot for anywhere near those speeds. Instead, I took the core to 700MHz and the memory to 1.8GHz and began running tests and checking for artifacts and graphical anomalies. I didn't notice any, and that was about as high as I could get this card overclocked.