AMD x4 955 CPU running at 7 GHz

AMD introduced the latest member of its Phenom II X4 family of high-performance quad-core CPUs. Out of the box the new X4 955 Black Edition runs at 3.2GHz which is similar to Intel's fastest desktop chip but 10% cheaper. During some extreme overclocking test they've been able to achieve speeds well over twice that speed. Don't expect to be able to do this at home. Speeds that high can only be achieved with help liquid nitrogen or even liquid helium. To run at that speed for an hour it would take about 50 gallons of liquid helium cooling it to -400 degrees Fahrenheit. Do you still want to try this at home? If you want to use conventional fan cooling, you'll be safe running it to 3.8GHZ. AMD has said the X4 955 will cost $245.