- Computers. to modify (a hardware component, as a processor, graphics card, or memory) so as to increase the speed of that component beyond the specifications of the manufacturer: You can overclock your video card to improve its performance.
Origin of overclock
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the practice of modifying a computer (esp with a cooling system) to allow its processors to run at greater speeds than the manufacturer intended