Everything about latency. This section is mainly user/consumer discussion. (Peer-reviewed scientific discussion should go in Laboratory section). Tips, mouse lag, display lag, game engine lag, network lag, whole input lag chain, VSYNC OFF vs VSYNC ON, and more!
Input Lag Articles on Blur Busters.
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forii
- Posts: 218
- Joined: 29 Jan 2020, 18:23
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by forii » 21 Nov 2020, 09:55
Does it actually help?
Some people says it doesnt do anything, some says it fix framerate and 1% low fps.
Do you guys use it or no?
I have RTX 3080 + 8700k
Windows 10/2009 /20H2

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TTT
- Posts: 253
- Joined: 28 Jul 2018, 14:17
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by TTT » 21 Nov 2020, 10:21
Its basically for people who don't know how to optimise their PC.
If some pc 'noob' has loads of stuff open and they suddenly want to play a game and leave everything open, it will just send all assets to the game instead of the other programs that are open, that you should have closed anyway.
Most tests seem to be either no noticable improvement or on a decent rig it actually hinders it, I guess its because it isn't really a performance boosting thing, its just for what I said above.
Originally it even stopped OBS working in the background but they patched that, but you're better off just leaving it off.
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jorimt
- Posts: 2641
- Joined: 04 Nov 2016, 10:44
- Location: USA
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by jorimt » 21 Nov 2020, 11:37
forii wrote: ↑21 Nov 2020, 09:55
Does it actually help?
If you're not multitasking on your computer while gaming, probably not much from a performance perspective, no, but it does do one thing that might warrant enabling it; it prevents Windows from performing some update downloads/installations and sending notifications when a game is running:
https://support.xbox.com/en-US/help/gam ... ming-on-pc
I don't know about you, but with it off, I have experienced stutter out of nowhere when gaming only to find when I alt+tab, Windows is installing an update.
For that reason, I personally leave it on.
(jorimt: /jor-uhm-tee/)
Author: Blur Busters "G-SYNC 101" Series
Displays: ASUS PG27AQN, LG 48C4 OS: Windows 11 Pro Case: Fractal Design Torrent PSU: Seasonic PRIME TX-1000 MB: ASUS Z790 Hero CPU: Intel i9-13900k w/Noctua NH-U12A GPU: GIGABYTE RTX 4090 GAMING OC RAM: 32GB G.SKILL Trident Z5 DDR5 6400MHz CL32 SSDs: 2TB WD_BLACK SN850 (OS), 4TB WD_BLACK SN850X (Games) Keyboard: Wooting 60HE Mouse: Razer Viper Mini SE Sound: Creative Sound Blaster Katana V2 VR: Beyond 2, Quest 3, Reverb G2, Index Consoles: Dreamcast, PS2, PS3, PS5, Switch 2, Wii, Xbox, Analogue Pocket + Dock Scaler: RetroTINK 4k
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drjackmann
- Posts: 30
- Joined: 29 Oct 2020, 19:44
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by drjackmann » 21 Nov 2020, 20:29
at this point there really isn't much of a reason to turn it off - it's been stripped down so that all it currently does is stop background apps from running and pauses windows updates / system scans while you have a game open. at the moment I think the bigger mystery is if the new w10 gpu scheduling option is helpful or hurtful.
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MT_
- Posts: 113
- Joined: 17 Jan 2017, 15:39
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by MT_ » 21 Nov 2020, 21:20
JohnMSFT on reddit said that since 180x (i think) game mode no longer prioritizes anything and just does regular stuff like block windows updates and other silliness. Also incredibly unclear how game mode applies to certain games. Is it a list? Is it automatically updated through cumulative updates?
One person once 'tested' that it magically shaved off roughly 5~ms but I think this was either in error of margin, or simply running on a stock, unoptimized Windows. I have never seen this behavior in either 170x or 180x branch. You cant 'magically' shave off 5ms somewhere without things already going wrong somewhere down the line.
Either way it doesn't really matter, can't hurt to leave it enabled.
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TTT
- Posts: 253
- Joined: 28 Jul 2018, 14:17
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by TTT » 22 Nov 2020, 09:31
Fair one, I'll leave it on and see if I notice any difference.
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ffs_
- Posts: 47
- Joined: 24 Jul 2020, 00:57
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by ffs_ » 22 Nov 2020, 09:58
I don't use it. Actually I don't even have this setting since I always remove some useless stuff from ISO before install. I don't have anything in background during playing, and Windows Update is always off.