Destroy Input Lag | Gsync, Reflex, Frame Cap, & Ultra Low Latency 

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From what I've read, Nvidia considers Reflex a replacement to LLM and automatically overrides it, regardless of what LLM is set to when Reflex is enabled. Let me know if that's wrong :)

I wish you tested the most common and recommended method: G-Sync + NVCP VSync + in-game framerate limiter under refresh rate (eg. 138 for 144 Hz, 234 for 240 Hz, etc.). Out-of-game framerate limiter, regardless if it's from Afterburner, NVCP, or what, will raise latency compared to -in-game. That combo is supposed to give the lowest input lag while taking advantage of VRR (G-Sync in this case) while preventing the game from going into regular V-Sync mode (which massively raises input lag) while preventing the game from going beyond the refresh rate (which could introduce stutters & tearing). NVidia recommends NVCP VSync always be enabled when using G-Sync in order for G-Sync's frame-pacing to work properly. None of that is taking "Reflex" into account though. I'm personally not sure about Reflex because it's, unfortunately, one of those settings that game-makers need to purposely implement and the mass majority of games don't. Also - unless something has changed - it's generally recommended to enable NVCP''s Low Latency Mode but set to "On" instead of "Ultra". "On" is the safest best. There are cases when Ultra is faster, but there are also cases when Ultra is slower. It has to do with game, CPU usage, GPU usage, etc. While "On" is always going to work great no matter what, Ultra can give varying results. Furthermore, at least in my experience, "Ultra" can impact framerates as well as framerate consistency/variability while "On" never does.

Would it be ok to run gsync vsync low latency and a cap of sat like 80-120ish? I have a 280hz monitor and in a couple of games I play too high of a frame rate tend to mess with the speed of certain actions in yqme

So is this vsync in control panel or vsync in game. If it’s the control panel, would “fast” improve latency?

Awesome video

Thanks bro should I use reflex low latency in game on or on+boost which one is better

Very helpful video

Is the frame cap coming from in-game or out-of-game (eg. MSI Afterburner, NVCP, etc.)? Out-of-game frame-cap supposedly increases latency compared to in-game according to others (eg. Blur Busters). For non-Reflex games (99.999999% of games), I'm sure TONS of people would love a non-Reflect version of this test with more games but using 2 specific combos: A) G-Sync + LLM On + in-game frame cap around 6 under max refresh rate (eg. 138 for 144 Hz or 234 for 240 Hz) VS B) G-Sync + LLM Ultra + no framerate cap as LLM Ultra supposedly takes care of that (but oddly at quite low fps, for eg, I believe it sets framerate to 225 on 240 Hz monitors, not sure why). For games that don't have a framerate limiter (either in-game, text file, etc.), I guess you'd have no choice to use an out-of-game limiter.

in mw2 what if AMD？ freesync + vsync + reflex , is the delay the same as gsync? the vsync in the game best ? or gpu control panel vsync best?

Sooo.... G-Sync compatible ON + V-sync + Reflex ULTRA + ULLM off for Rainbow Six Siege (Vulkan)? Running 3090, 12700kf and 390Hz monitor right now (easily getting 500fps if needed, graphics settings all off, shadows medium). Not sure what to look for without the NVidia's click-to-photon thingy :( EDIT: Also what about capping framerate using RTSS? I've had good experience overall with RTSS before. EDIT2: V-Sync FAST sound good too.

how about amd card sir? so i should enable freesync + anti lag+ vsync always on (driver) + ingame fps limiter?

hola, de igual manera a lo configurado. Habilitas GPU acelerated / modo game?

Great, can you do a video excluding reflex and including ultra low latency modes with gsync and vsync

You should try uncapped framerate without gsync or vsync + Reflex. I was under the impression that Gsync added a little bit of latency if I'm remembering correctly.

Maybe for your system/setup that's correct. Other factors you are forgetting is like the hardware, monitor, etc... So it could be different for other systems, right?

I've read that enabling low-latency modes/Reflex in conjunction with frame limiters/frame cap (especially more than one at a time) really hurt latency and performance. Is this true?

What about low fps games like Microsoft Flight Simulator were fps is between 30-45? (On Freesync Premium monitor with Nvidia GPU 1660 Super). Tnx

I don't understand Apex Legends results. How can full-on, regular V-Sync not only have less lag than non-Vsync at 26.6 ms VS 29.5, but also be so close to the other two combinations? Were the framerates not hitting the maximum refresh rate in that test? If the framerate is pegged at the max refresh rate and therefore activating regular 'ol VSync, I would have expected way higher latency than every other combo.

What if i play a cpu bound game i play valo and have a lot of desync issue

Great video! I wanted to make a quick note saying that multiple testers have shown that you shouldn't use Ultra Low Latency Mode if you play Direct X 12 or Vulkan games. These APIs decide when to queue frames on their own, meaning they don't even use Nvidia's low latency options.

is there no cap with the g-sync + vsync + reflex

If i enable g-sync,ultra latency, and verrtical sync, do I also enable adaptive sync and VRR control in my monitor?

What about the latency with gsync off and the other options on? The streamers/RU-vidrs I’ve seen have previously said gsync added latency itself

Any news about realise date of samsung g9 oled monitor?

Was that flight Sim at the end?

If you enable g-sync and v-sync in nvcp , then you do not need to artificially limit the amount of fps , because v-sync adapts to the capabilities of the monitor and limits the fps to what the monitor can do. If I am wrong please correct me.

You are missing a comparision between gsync on vs gsync off

Can u do one last check ? Gsync+Vsync+138 fps frame cap vs Gsync+Vsync+reflex , please ;-;

It would be interesting to see just vsync + cap 3 below max refresh rate monitor

Uh, why aren't there non-synced options tested.

With the option no gsync, no vsync, is it still worth enabling Reflex or if it is not available ultra low latency?

Broo whats about disable g sync ?

Lowest latency is without G-sync. I cant play with it enabled. There is some input lag that I don’t feel without it. I know many ppl don’t feel it but it is there. So it’s to bad you didn’t test without it.

Awesome video, subscribed! Could you also test Valorant, CS:GO & Overwatch? Those are the games I play most.

I been using Gsync on + Vsync on on Nvidia control panel after I bought a Gsync monitor.

question, why reflex+boost on cyberpunk is lowering my gpu usage and lower fps and reflex ON works fine? 5800x3d+3090, i would really appreciate to know...using gsync+vsync+cap -5 in all games including competitive.

It's god send and super convenient to just set Ultra low latency mode in NVCP, 158fps crame cap, Vsync on. 9/10 it'll be the best option and you don't have to think about anything. No tearing, great experience. Some games I've found to not have their frame cap set by NVCP, so I have RTSS set a global 159 cap. Some games like cyberpunk with FG is messed up by RTSS in terms of latency so you have to add an exception in. But no need to montior frames and you can be confident you have the best experience.

radeon version of this? please?

Why not fast sync?

Gsync + Vsync + Reflex is the best solution for input lag, but ON or ULTRA? And the Reflex does not drop performance with less fps?

is that vsync or fast vsync?

I would also like you to test these combinations in PUBG and Rainbow Six Siege, which are the most played competitive games in the world. Your content is definitely successful, but I would love to see Pubg and Rainbow Six tests as well.

Monitor name ?

Was there a difference in latency between Gsync On/Vsync On vs. Gsync On/Vsync Off?

Reflex is not something we can toggle in Nvidia CP right? It’s up to the individual game?

On my 240Hz monitor, G-Sync + V-Sync + Reflex is always the way to go. Incredibly smooth image and imperceptible input lag, pretty much

Reflex overrides ULL (driver) so doesnt matter if on or off. There is also Fast sync. Also why all tests are with G-Sync? Lowest possible input lag is No FPS Cap+ Reflex & GPU% as low as possible (around 45-65%). BTW the fact that G-Sync+VSync+Reflex is the same input lag as Gsync+No FPS Cap+Reflex doesnt mean its as good. On 240hz Display (240hz is more used) No FPS Cap+Reflex also can give you a lot higher FPS than G/vSync+Reflex. You frametimes can go at least twice as low.

hey thanks for showing apex!

WTF! ITS YOU! Did you set up a new channel or are you doing cards and monitors separate now?!

Having fps limiter + reflex is kinda redundant since reflex automatically limits the fps below the monitor refresh rate. A better comparison would be Gsync+Vsync+reflex vs Gsync+Vsync+fps limiter

But, what if the game does not have reflex? What should we do?

Did we test "No G-sync + No Vsync + Reflex"?

I remember mythbusters saying that you need to enable Vsync (nvidia CP only) for Gsync to kick in has this changed over the years?

Wow I’ve been capping my frame rate on my free sync monitor for years… what a mistake!

I usually use Relfex, G-Sync and 141 FPS cap

what about no gsync no vsync uncapped fps with reflex and with reflex + boost thats what I would like to see as comp fps gamer

😢No overwatch tests? It was the whole ass intro of the video😂😂

What about for Valorant when I'm at 500+ fps nearly all the time.

In apex legends, if framerate exceeds gsync range, gsync isnt activated so the first place with 20ms of latamcy is basically uncapped fps + reflex. Unless you have 360hz monitor. To use gsync properly you need to turn on vsync in NVCP. ( It won't cause input lag!) And cap framerates in steam / orgin alteadt 3-6fps below you monitors refresh rate. This way you get buttery smooth experience with little input lag. Or instead of frame cap in stram or orgin you can just enable reflex and it should cap your frames to 138 for 144hz monitor. When it comes to capping fps reflex is good, steam lunch commands are the best when it comes to input lag and programs like RTSS are the smoothest but almost twice more input lag unfortunately.

If you’re getting frames higher then your refresh rate please dont use gsync / vsync. When using gsync / vsync it creates more latency. Most tearing occurs when the fps is below your refresh rate. When it’s above just use fixed refresh with an fps cap that your system can constantly obtain for the smoothest gameplay with lowest latency. If your fps is below your refresh rate gsync + vsync + reflex is the way to go. If reflex is not available make sure to cap your fps 2-4 frames below your refresh rate to prevent the latency from vsync to kick in

I can’t even get 300 frames in the games I play :( maybe one day

What monitor is that?

Man I wish there was a glossy 1440p QD-Oled 240hz 27 inch flat monitor with a good BFI feature and I would buy that right now for 1500$, honestly. That would be the perfect gaming monitor. Ig I gotta wait for another year

reflex and llm (on ull) internally caps the framerate 3 below refrash rate if vsync is enabled (in the renderer, so you can't see the cap trough software or game engine) so you shouldn't be limiting the framerate manually, since that just makes it delayed by a single frame which you can see as worse latency through your camera tests

No sense on those results before we know how much your GPU was utilized. I mean after small research you can understand that less utilization - lower latency. for lower latency you should be at 90% of Gpu utilization and not higher than 95%. If you are at 100% ULLM will help to lower latency, but still its better to be at 90% of utilization

Just nvidia?

Please do it again without gsync, vsync. Also for AMD GPUs as well to see what they can use without reflex at high frames per second.

gsync sucks so much. it just doesn't work right on genshin impact (which doesn't have full screen mode, only borderless window). the frame pacing is absolute SHIT. it worked 100% perfectly on my radeon gpu. man, i'm starting to regret this rtx 4080

But i heard gsync increases latency so i would like a no gsync+reflex vs gsync+reflex

Could you do the same thing for AMD Freesync?

I expected to see ow2 :(

i know why mw2 have low input lag!!! Because the game oper "Gsync+vsync+reflex" will auto oper fps lock！below the monitor 7fps the auto fps lock different from frame cap。 So low input lag

Ew Nvidia. How about those extra input latency g-synch modules.

What about, Gsync + vsync + framecap

Listen , anything that will get you the smoothest experience is the best option. You nerds who want 1000 fps with all the screen tearing are wild and idk how you even put up with it. i did not buy a 240 plus hz monitor to experience screen tearing and stuttering. Give me the Smoothest option. This "latency" bs is not as drastic as yall make it seem. Whatever makes your screen fluid and smoothest is the option best

Bro no one is using g sync lmao

If you locked framerate to for example 400 and your max is 500 it would crush all of the above tests.

Reflex auto caps your fps just under your monitors max hz fps so a frame cap and reflex are trying to do the same thing so is pointless with g sync and v sync on in the driver.

Wtf gsync + vsync? 2 algorim trying make a best refressh at same time... that its not good..!!!

Gsync+ Vsync + Reflex.. is no frame cap?

Is that the advice given out??? Frame caps are only credibly recommended only when Reflex isn't available. I run LLM Ultra + GSync + frame cap in LoL. In Valorant I run the simple and recommended setup of GSync + Reflex + Boost. These results are one short term test, only use VSync in single player games.