Comparison of Fast Sync and G-Sync input delay.
Comparison of Fast Sync and G-Sync input delay.
Before discussing, it’s important to clarify that these two technologies are not direct competitors. Fast sync addresses screen tearing beyond the monitor’s refresh rate, whereas G-sync handles the same issue when frame rates drop below that threshold. This leads to my current situation. I use a monitor with a maximum refresh rate of 120Hz and have G-sync enabled. My goal is to avoid playing games at 120fps because V-sync would trigger and cause input lag. I’ve learned that limiting the frame rate to below the screen’s maximum—such as 119fps—can help reduce lag when using G-sync. On the other hand, fast sync allows running at 121fps, but I haven’t encountered any direct comparisons or reviews between these two methods. The main concern is maintaining stable visuals without excessive input delay, especially since I don’t want to risk further increasing lag even if it improves responsiveness. My priority is a tear-free experience that remains consistent regardless of the frame rate.
Oh yeah, apparently I forgot to add to my original post that I know math. Yes, I know the difference is probably going to be marginal, but I would still like an answer and some numbers to back it up if at all possible.