How To Overclock CPU: Overclocking a CPU is a clever way to make your computer run faster. You can accomplish that by starting your CPU at a higher frequency. By forcing your computer's CPU to operate faster than it was intended to, overclocking allows you to boost the processing power of your system. Overclocking is the technique of making the CPU operate faster than it is capable of. It's a way to increase CPU power without changing your computer's hardware in any way.