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I think G-sync completely worth it.
Without it, its impossible to produce smooth frame rate as long as its not an integer fraction of max framerate - e.g. only possible is 60,30,15,etc. Even with 144 Hz monitor its pretty restrictive - 144, 72, 36, 18, etc. If game deviates from these numbers, it will stutter and there is no way around.
So basically without it, you either have to be able to always pump max framerate or accept ugly screen tearing/stutters.
Freesync *in theory" should be the same, but in practice arbitrary "min framerate limits" make it useless for many scenario.
Without it, its impossible to produce smooth frame rate as long as its not an integer fraction of max framerate - e.g. only possible is 60,30,15,etc. Even with 144 Hz monitor its pretty restrictive - 144, 72, 36, 18, etc. If game deviates from these numbers, it will stutter and there is no way around.
So basically without it, you either have to be able to always pump max framerate or accept ugly screen tearing/stutters.
Freesync *in theory" should be the same, but in practice arbitrary "min framerate limits" make it useless for many scenario.