What is the difference between 50Hz and 60Hz?

Hello,

In fact, this corresponds to the refresh rate of the images; at 50Hz, the number of fps will be around 25fps, at 60Hz around 30fps, at 120Hz around 60fps, etc. The higher the value, the smoother the video will be without stuttering, but the graphics card also needs to be able to achieve a high frames per second rate.
After that, I won't get into the period calculations...