G-Sync, Input Lag, Refresh Rate, and FPS

[nero]

Hello All:

I play many first person shooter games. Specially, PUBG. I have a pretty nice setup. Running a 2080ti i9 with enough RAM for any general application. I am sort of a perfectionist and want to make sure I am getting the best possible setup. I have read many different pieces of information from other websites as well as from this site that have left me slightly puzzled. I have a 144 HZ monitor; but I also have a 240 HZ monitor that I am currently not using (too small). I am using the AOC 32G1WG4. Whether my eye sight / or brain is too slow; I cannot say that I have ever really witnessed tearing. At 60hz I definitely notice the difference as I moved up; but could not tell the difference between 144 and 240 which is why I am sticking with the 144 for now.

But here is my dilemma. Recently, on Reddit through a discussion I came across this graph:

https://i.imgur.com/FTUpnYu.png

This obviously suggests that my best possible setup would be G-Sync On, V-Sync On, and FPS capped at 138 in-game.

No problem. Tried it and the game ran beautifully. But it always runs beautifully.

But then, I remembered about several people suggesting that FPS beyond your monitor's ability is great because it can actually lower your input lag even further. I looked and found this article on this site:

https://www.blurbusters.com/faq/benefit ... resh-rate/

That would suggest to me no G-Sync, No V-sync, and unlimited or MAX in-game FPS.
With this setting my game hits FPS as high as 380 sometimes. And I see no noticable effects (again, maybe just my brain is too slow).

So, it brings me to the realization that setting is best for me as long as I am not seeing any BAD effects on the image.

Am I right in this assumption or should I go with the V-Sync / G-Sync / 138HZ capped in-game setting instead?

Your help is greatly appreciated. I am of the feeling that the caping and v-sync is for persons that are experiencing tearing? Am I right?

[RealNC]

I cannot say that I have ever really witnessed tearing.

If you don't, then that means vsync is happening somewhere. Maybe you're playing in windowed mode, or vsync is forced in the nvidia control panel.

[Konatsuz]

A youtube channel called Battle(non)sense has some videos that might answer your questions.

[jorimt]

But then, I remembered about several people suggesting that FPS beyond your monitor's ability is great because it can actually lower your input lag even further.

More info (and input lag test results across 6 refresh rates using a 240Hz monitor) on this specific point is available in my G-SYNC 101 series as well (it's what parts of the https://www.blurbusters.com/faq/benefit ... resh-rate/ article you linked were based on):
https://www.blurbusters.com/gsync/gsync ... ettings/9/

TLDR: it depends on the refresh rate, and how high your framerate can exceed it with V-SYNC OFF, but at 144Hz, the input lag difference between G-SYNC + V-SYNC + 138 FPS @144Hz vs. V-SYNC OFF + uncapped (say, 300 FPS) @144Hz (at crosshair-level) is around 1-3ms.

Up to you whether it's worth it, and it depends on if you desire zero tearing and more consistent frame pacing (G-SYNC) over that extra bit of input lag reduction (V-SYNC OFF).