Overclocking is part of PC tuning and refers to methods to increase the speed of transmission or processing of clock-dependent components. As a rule, the clock rate is increased in order to operate the component above its nominal clock. You can overclock the processor, the memory bus of the main memory and the graphics card. The biggest performance gain can be achieved by overclocking the processor.
If you want to overclock, you must familiarize yourself with the functionality and interaction of the hardware components involved. Benefits, risks and side effects must be determined exactly.

When overclocking attempts must always be expected that system components are damaged or destroyed. Therefore you should create a backup of your data before overclocking. Even better, try overclocking on a fresh system.