what is vsync?

as the title says
it appears in many game options
but what is it? does it improve graphics?
perhaps noob question but i really don't know :oops:
3 answers Last reply
More about what vsync
  1. Vsync, from what I understand, is a process which prevents screen tearing. A more detailed description about tearing and ways to prevent it can be found here, though know I just googled it...

    When it's off, your performance increases, and when it's on, you won't get the tears. I can't actually run anything graphics intensive on my computer, so vsync is usually off.
  2. here is a better link for Vsync
  3. thanks for the links
    totally clear now 8)
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