G-sync in full screen or windowed mode and full screen?

[opio]

With my G-sync monitor it gives me the option in the nvidia control panel to turn on g-sync in full screen mode or full-screen and windowed mode... which one should I do? Does it make a difference?

 

[TechyInAZ]

If you like to "alt + tab" out of a game pretty often, running g sync in windowed mode would work best. If not, just do fullscreen.

 

[photonboy]

I can't test, but there are reports that Windowed mode causes issues such as lower FPS.

It may be a non-issue now, and of course you can test yourself.