So that you have a gaming experience without any hiccups
What is V-Sync and Should You Use It? [Explained]
Vsync is a feature you see in most PC video games and sometimes even in other applications. But what is Vsync? What does it do? Should you turn it on or off?
The answer to this is complicated, but once you understand the purpose of Vsync, you'll know when to turn it on and off.
The first thing you need to know is that your monitor can display a certain number of discrete images per second. This is known as the refresh rate, which indicates how often the monitor can completely refresh the image on the screen with something new.