How would this work? The GPU controlling the refresh rate of the monitor? Not sure thats possible. But if so, then I should get me one so my $200 vizio can display at 120hz.
I still experience tearing occasionally in any kind of vsync mode. I use adaptive on my 680 though.
I didn't say the gpu controls the monitor, i said the monitor follows the GPU, very different... read man!
Gsync works (as the name suggests) exactly as I say - it follows the GPU output
dynamically. Thus removing the need for vsync and its associated disadvantages. Secondly, this technology is limited to the upper threshold of the monitor's refresh rate - so no, it wont run at 120Hz unless the monitor could display 120Hz previously...
I don't know the exact technology (haven't looked into it), but if you had a module (e.g. gsync) in the monitor that could detect (via software or hardware) GPU output FPS and match monitor refresh rates in Hz (which is fps essentially), that would remove tearing and make vsync obsolete... that is what nvidia has done. Im actually more surprised someone hasn't thought of this before!
Ill put it simply for you.
When the GPU outputs 20FPS, the monitor refreshes at 20Hz, when the GPU outputs 80FPS, the monitor refreshes at 80Hz and then everything in between up to the maximum that the monitor can handle. Whats the benefit? Well vsync would output divisions of FPS to ensure that tearing didn't happen in instances when the refresh rate and gpu output (fps) were out of phase... This meant that you could see drastic drops in the fps... no longer...
Metaphorically, its similar to machine gun synchronisation for forward mounted WW1 aircraft guns.... lol except in this metaphor, screen tearing = propeller destruction and FPS drops = propeller stopping... not ideal.
It's available I just bought a monitor with gsync module. It does a lot more than eliminate tearing. It provides a smooth game play experience without necessitating a high end gpu keeping FPS pegged at 60 FPS+ on ultra settings. It also drastically reduces input lag
You could've just turned on vsync with your system... Quad SLI 680s (GTX690 x 2), can run easily at 1080p anything without any issues resulting in lower FPS.... In fact you should be getting much better than 60FPS at all times no matter what you play.
Also mate, how is that scaling between 1 690 and 2 with the limited PCIe lanes on the 2700K?? Also, that PSU may need upgrading with essentially 4 680s installed... just warning you.
