N-card overclocking dynamometer
in the registry interface, expand the registry subkey HKEY one by one with the mouse_ LOCAL_ Machine / software / NVIDIA Corporation / nvtweak. In the right window area corresponding to the nvtweak subkey, check whether there is a double byte value of "coolbits". If not, right-click the blank area of the right window and execute the command of "new / DWORD value" from the pop-up right-click menu
then name the newly created DWORD value as "coolbits", and then set its value to "3" in hexadecimal (as shown in Figure 1). Finally, click "OK" to exit the registry editing interface and restart the computer system, so that you can see the overclocking function option in the official program interface of NVIDIA graphics card in the future.
The steps are as follows:
1: Download afterburner software, this software AMD or NVIDIA graphics card take all
2: in the figure below, 1 is the core voltage, 3 is the core frequency, 4 is the video memory frequency, 5 is the fan speed,
3: overclocking is mainly to adjust 3 and 4 and pull the progress bar to the right. Then click Apple below, the graphics card will be overclocking
4: if a certain frequency operates stably and you want to save the overclocking scheme, check the blue circle in the lower left corner
it is better to use 10% of the default frequency as the overclocking amplitude

The specific operation steps are as follows:
1. Open the browser in the mobile phone, search and find the download address of NVIDIA inspector software on the Internet, and then download and install the software:

"CoolBits"=dword:00000003
就可以了.
What's the relationship between video memory frequency and video memory
if you want to be the same as memory size and memory frequency
how much you can exceed depends on the constitution of your video card
it is recommended to use nvturn to exceed the frequency
find a master to help you, or go to the Internet to watch the video; It's not easy to brush the BIOS. If you don't play it well, you can't turn it on
thank you. I hope my answer can help you!
