How gsync works in windowed?

[Edgarchik]

Hello. Im planning to buy gsync 144hz monitor.
And my question is: if i set gsync to work in windowed mode and i will play a game in window with capping to 120 fps in-game (fps_max 120) will my monitor refresh with 120 hz or 144 hz (because other windows except game are not capped)??
How do i manage to set fps cap in windowed mode properly and do not get additional input lag (keeping in mind this article http://forums.blurbusters.com/viewtopic.php?f=10&t=895)?

[lexlazootin]

G-Sync only works in fullscreen or Borderless Windowed.

You can't make it run in a single smaller windows.

[Edgarchik]

well borderless window CAN be single smaller window http://i.imgur.com/EOZ4P6S.png
so there is contrariety in your post

[lexlazootin]

Borderless fullscreen then?

[Edgarchik]

Where did you get this info about borderless fullscreen? Or you tested this?
I just partly dont trust this answer because its still window and other windows are still processed at tha background (you can even move this screen-sized window to any side and see other windows)

And disclaimer from nvidia page

Now, you can enjoy a tear-free, stutter-free experience whatever your screen mode, enabling you to look at web pages and streams in a browser window while playing Hearthstone, World of Warcraft, or any other game in a window on your desktop. It’s also handy for the many excellent indie games on Steam that lack full screen options.

[Edgarchik]

Okay i found the answer

NVIDIA will now change this using their display driver, and when Windowed G-Sync is enabled, whichever window is the current active window will be the one that determines the refresh rate.

[lexlazootin]

Huh, i swore it only worked in border-less fullscreen, Nvidia must of fixed it up or something haha

My fault, sorry