I use FreeSync but this should be useful for older games that try to render at 250+ FPS at max settings, assuming it can be turned on globally in place of V-Sync. With so many options in GPU control panels and then even more options in games it's hard to know what's going on. For example, if you're using Enhanced Sync or nVidia's Fast Sync, do you need to disable V-Sync within each game?Enhanced Sync
NVIDIA’s Fast Sync finally gets a competitor. With 17.7.2 driver AMD introduces an alternative to VSync called Enhanced Sync. I’m not going to explain how this works here, but what you need to know is that it will give you the advantages of VSync without the latency caused by synchronization with the display. No more tearing and no more lag.