What's the use of video card overclocking?

If it is Nvidia's graphics card, there is no third-party software, direct use of the driver can be overclocking, convenient and safe.

The method is:

Open the registry (Start-run-enter regedit-carriage return) and locate the Hkey_local_machine-software-nvidia corporation-global-nvtweak-right in the right key,

The new DWORD value, named Coolbits, changes the key value to 3 to activate the overclocking feature.

And then right in the desktop space-Properties-Settings-Advanced-Select the one with the video card logo-the clock frequency should be visible on the left,

I don't need to tell you the rest.

If it is an ATI video card, its drive-by-band provides overclocking functionality. For other graphics cards, PowerStrip software is recommended.