Great videos covering input lag with GSync, Fast Sync, VSync, FreeSync

Bacon1

Diamond Member
Feb 14, 2016
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This guy does an amazing job on his videos, his testing on many multiplayer hit registration / netcode is great.

GSync
https://www.youtube.com/watch?v=F8bFWk61KWA


Fast Sync vs VSync
https://www.youtube.com/watch?v=L07t_mY2LEU

Hopefully he can get some AMD hardware and test out FreeSync as well, though it should be very similar to gsync. First person I've seen test this since Linus Tech Tips when gsync/freesync first came out.
 

bystander36

Diamond Member
Apr 1, 2013
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1 thing he did fail to test, was the smoothness, or lack there of, of fast sync. Fast sync isn't a 1 size fits all solution, because in some games, it will make the game feel choppy. Regular V-sync can create back pressure, which can smooth out the time frame of a game.

I do use Fast sync, but not in all games, as I've found it can make some choppy.
 

Bacon1

Diamond Member
Feb 14, 2016
3,430
1,018
91
1 thing he did fail to test, was the smoothness, or lack there of, of fast sync. Fast sync isn't a 1 size fits all solution, because in some games, it will make the game feel choppy. Regular V-sync can create back pressure, which can smooth out the time frame of a game.

He did mention that near the end:

https://youtu.be/L07t_mY2LEU?t=750

He even says that he wouldn't recommend fast sync due to the stuttering.
 

casiofx

Senior member
Mar 24, 2015
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Weird, I got lots of stuttering when I was on my 1080p 60Hz monitor last time when my fps dropped below 60. Now that I got myself Acer XB271HU, even using my R9 290 with it so no Gsync at all, running at 144Hz refresh rate, I can't see tearing even when my fps dropped to below 40. I was playing rise of tomb raider and DOTA 2. Stuttering is massively reduced when my fps dropped to 40. 144Hz is damn cool, still trying to justify gtx1070...