What is the reason to use borderless full screen as opposed to normal full screen.? If it is to get more FPS than monitors refresh rate but still prevent screen tearing than you can use fast sync which does exactly that.
Just tried Battlefield 1 borderless and SLI worked fine.
How does borderless fullscreen get rid of tearing? Does it just turn v-sync on? Since it's on in windows?
Can try some other games if there's anything specific.
Borderless full screen rarely gets more FPS than exclusive full screen, though it can happen. Back in mega old days there'd be a huge FPS hit for running windowed, full screen / borderless or not.
I had no idea of the effect that borderless full screen had on eliminating screen tearing except by stumbling on it and seeing it with my own eyes. There were actual debates online querying how it eliminates screen tearing versus exclusive full screen, and I haven't been able to find a definitive answer despite sifting through quite a bit of discussion. Possibly something to do with Windows taking over the buffering as per its desktop and enforcing its own vsync. Presumably the trade off is in input lag or something, which I'm not one to notice unless it becomes
really obvious.
The difference is, unlike the many vsync options that are usually aimed at limiting FPS to 60 or 30, else tearing, on borderless fullscreen you can be going 35,40,45,50,55 fps etc without screen tearing.
I had a troublesome period with 2x GTX 970s, which at the time definitely needed exclusive full screen to get them both running in SLI with decent utilisation. The screen tearing was horrendous and a constant distraction. Switching down to one GTX 970 with borderless full screen meant less FPS, but the screen tearing went away. Overall, I found that a much much better experience.
Cheers for your responses. I will admit I was a tad grouchy on 24 November