[quotemsg=12573260,0,67821][quotemsg=12573229,0,1297078]Hmm, if all it does is eliminate tearing, not sure if that's worth $200.
I might grab something else then.[/quotemsg]
Read/watch my links.
It does far more than eliminate screen tearing. VSYNC ON eliminates screen tearing but then you get lag so things feel sluggish. GSYNC eliminates the need for VSYNC so you get minimal lag.
There's also a few other things going on, but basically GSYNC:
1) eliminates screen tearing
2) minimizes the lag of VSYNC
3) reduces STUTTER and JUTTER
As said though, you can't appreciate it unless you use it. The experience is similar to being able to output over 144FPS but having VSYNC on and locking to 144FPS. The much higher frame rate reduces lag, and VSYNC ON removes screen tearing. It's slightly more complicated though and G-SYNC solves a few other minor things.[/quotemsg]
Oh, one thing you didn't mention, when you have 144FPS with V-sync, you get extra latency you don't get at 143 FPS. Due to the polling required with G-sync, it will also increase latency at FPS above ~120-140 FPS. You should set a FPS limiter with G-sync, so it won't get that extra latency in extreme FPS situations. Notice how the FPS limit at 120 performed better than at 143. At 143, it starts behaving like Vsync again. The exact best limit is unclear, but it is somewhere between 120 and 143 FPS.