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Core Clock

Vangie Beal
Last Updated May 24, 2021 7:39 am
The actual speed at which the graphics processor on a video card operates. Core clock is measured in megahertz (MHz). The core clock speed can sometimes be changed on newer cards where users want to gain a performance boost. This is called overclocking and it can usually be done using third-party utilities or the drivers provided by the video card manufacturer.