CPU-Z is a program that reports the current speed of the processor, memory, and other valuable information. CPU-Z is not a benchmarking program, as you probably already know. The validation file can be uploaded to CPU-Z's server and checked for its authenticity. All top benchers use this to prove that they have achieved a valid speed. These type of benches are fondly referred to as suicide screen shots. The only goal of this test is to get the highest speed possible without any regards to the condition of the hardware.
With 1.888 volts, a multiplier of 29x, and the temperature at -197 C, we were able to capture a suicide screen shot at 5.8 GHz with the AMD Phenom II X3 720 Black Edition. This processor gave a remarkable 5.8 GHz validation, which is a 3 GHz boost over the stock 2.8 GHz speed. With the voltage cranked up to 1.94 V, we attempted to join the 6 GHz club. Even with the additional voltage, we did not gain any additional clock speed.