> You can ran MAME at 120Hz or 144Hz with "classic" double buffering (and throttle) > anyway.
It's not the same thing. Without G-Sync you will get harmonics between the games refresh rate and the monitors refresh rate. You'll end up with some frames being visible for longer than others, which makes movement appear jerky like if you try to display a 24fps bluray on a 60hz TV. Your only alternative is to cheat and run the game at the wrong refresh rate.
With G-Sync you have the link from the graphics card to the monitor set at the highest speed (maybe 144hz, maybe more) and pacman can present frames at 60.606060hz. G-Sync is basically about allowing arbitrary delays between frames that can then be sent instantly and not wait for the next 144hz slot.
For that reason I don't believe that what G-Sync claims to do can be implemented with current technology.
Index 
Flat 
Re: Examples?
Reply
