Yesterday we reviewed this processesor, but AMD said it had run as fast as 7 GHz in extreme overclocking tests. Out of the box, the new X4 955 Black Edition, which is aimed at gamers and hobbyists, runs at 3.2 GHz, giving it similar performance to Intel's fastest desktop chips at lower cost, AMD says.
However, AMD was able to more than double the CPU's speed during its tests, said Brent Barry, an AMD product manager.
So we got it to 3.8 GHz on air cooling, AMD used liquid Nitrogen though ;)
