What does Sync to VBL mean?

Unity Engine
1

This sort of ties into my initial question.
This setting is located in Edit > Project Settings > Quality
I have heard it syncs the frame rate to the moniters refresh rate. What does that mean? What is the advantage to that?
Thanks,
-Alias

2

A good explanation of what VSync is and does can be found here:
http://www.hardforum.com/showthread.php?t=928593

3

Thanks for your response.
So how does this tie into Unity, and because i made a fairly simple game, and have a very powerful computer, does it mean that if this setting was off, it would overwork the graphics card by making it render too fast?
Thanks,

4

If u enable it you should get smoother gameplay at the cost of framerate. That is if you are using a TFT.