^^ All I can say is that with Vsync on, I can feel the jouse being elastic as I move around in any game.
No, I do not touch it on global level (as that affects all apps in Windows, not just games and can cause undesirable effects, as AMD engineer said in different topic). I enable it in games usually and only in NVCP if game is old and doesn't have such option. However, I also always disable triple buffering in games (this is what causes a lot of delays in mouse movement etc.) and in NVCP I set Low Latency mode to Ultra (as that is designed to work very well with vsync and g-sync together, as even description says so in NVCP).
Vsync should always be on in nvcp and off in games and use rivatuner to cap 3 fps below refresh rate.
Battlenonsense has covered this stuff very well:
Nice so as well as this, spent the last hour and a bit reading up as it appears I missed a few key notes from what vsync/frame cap between game vs driver and Low Latency Mode in NVCPL actualy do, their pros/cons etc.
I found out that whilst Reflex utilises Reflex compatible mice and other hardware, if you don't have a mouse supporting it, then can still benefit from the Reflex low latency at a hardware level if the GPU/Display are up to scratch with Gsync etc too as the Reflex calcs are done in the pipeline anyway.
Also seems the best frame time stability is going to be from enabling the frame cap in the NVCPL rather than in the game's framerate limiter if it offers one. Whilst the game's limiter offers the best latency, the NVCPL method you can enable Low Latency Mode and set it to Ultra which sets the pre render frames to 0 - The CPU works harder as a result, but with today's CPUs that's not much of an issue since I am seeing CPU utilisation far below 50% in all games anyway so the 1% lows should not be affected.
So the takeaway for me perhaps is for the best frame time stability as opposed to tearing since I am not seeing any, which means:
-Frame rate limit set to a few below the monitor's refresh rate (in my case 141fps) in NVCPL. but this introduces latency, so...
- ... Low Latency in NVCPL to Ultra, but if any CPU spikes affecting 1% lows are seen, then turn it off.
-Triple buffering off in game settings anyway
-And where available, Reflex enabled in the game options which overrides the CPL low latency setting where applicable automatically
If Vsync is left off but frame cap is on as above, then you're never gonna go above the max refresh rate rendering speed anyway so negating the need for vsync - So save yourself any input delay introduced by using it.
I think that about covers it.