Nvidia Fast Sync Better Than G-Sync and V-Sync? 

► G-Sync vs. Free Sync: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mVNRNOcLUuA.html

I've never had much of a problem understanding why tearing happens, but this is the most perfect visual explanation I've ever seen. I'll definitely show it to anyone who doesn't quite understanding tearing.

Since I switched from a 60Hz panel to a 144Hz panel I couldn´t care less about these syncs. Simply because I wasn´t able to notice any tearing, and Linus made a video a while ago about the added input lag from G and Free sync. And now you explained why. Thanks. So in a nutshell for the best performance the oldschool high refreshrate monitors are still the best choice.

This video is definitely the clearest explanation of "sync" technologies available I can find on the internet. Thanks a lot for a great video! I've never thought about getting a 144hz monitor but now I guess I better consider getting one.

Wow, you are an amazing researcher. Don't let that talent go to waste. Many corporations would gladly hire you with top pay for that analytical cognitive. Get paid young man, and of course, keep producing these type of knowledgeable videos.

Hearing a shit ton of "buffer" in a german accent is surprisingly satisfying

You did a great job explaining how this all works, thanks!

Very well explained. You nailed the subject and used very good examples and pros and cons. Thumbs up!

PLEASE do more of this. I have been looking for a channel who does this stuff for SOOO long

the buffer, buffed the buffer which then sends the buffer to the back buffer which buffs the buffer of the buffer which then buffs the buff of the buff and then the front buffer of the buffer goes to the buffer and claims that buffer name and then replaces that buffer which buffs the buffer and the monitor buffs the buffer which buffs the bufferiest that it possibly can buffer.

That was great and confirms what I noticed when trying fast sync today for the first time. It's just not as smooth. I think its useful for capturing footage for RU-vid as you can show high FPS counter while not having tearing.

Thank you. This was very scientific. I did not know about Fast Sync!

but N-sync discontinued since justin timberlake goes solo.. he's the front buffer

Your videos are so well done and so informative it's crazy! I already knew the topic but was glad to watch it anyway I can't support you by donating cause I'm juste a student, but I'm sharing your videos with my friends when I want to explain to them how things works. Keep up the good work you are amazing!

so if the buffer starts to buffer, does one consider buffering to counter buff the buff buffing buffer?

Awesome content! I never thought FastSync would function that bad either as I've been using it for sometime now. I actually understood FastSync where the computer would keep producing, and dropping, frames until the front buffer scan is complete (which is what causes the micro stuttering). The use case for these settings are subjective, or preferential. For competitive matches I really don't mind tearing as long as the input reaction is fast. As for single player games I do use V-Sync.

This was an amazingly informative video and very well laid out quite impressed well done. Subscribed right away

take a shot after everytime he says "buffer"

But who is this Buffer?

This was very informative. Thanks for making the effort to put together this comparison.

What a well made video, it was written and spoken like kind of like a essay. You told what you were going to tell us, then you actually told us, then you told us what you already told us. Very well written and executed. Thanks.

"Get to the Buffa!"

Can someone count how many times he said buffer?

Maybe you can do a part 2 of that video, measuring the Double/Triple buffer in CS:GO settings, by having a fps_max 59 on the 60Hz setting, and a fps_max 143 or 142 on the 144Hz setting which significantly reduces the input lag by providing a non teared image to compare it with Fast Sync.

Your explanation of tearing and the difference between different refresh rate technologies was easy to understand and much appreciated, thank you

Great video! There's a small point I think you need to highlight with your examples at 12:10, your test monitor has a refresh rate of 144 Hz which is why 60/120 fps show tearing with no sync. This would not be the case with more common monitors that have a 60 Hz refresh rate (or some multiple of 60 Hz) in which case those monitors would have a similar result to your example at 144 fps. The point being the higher the refresh rate of your monitor, the higher the demand for graphics performance from your hardware to ensure your frame rate stays close to your monitor refresh rate. This will vary greatly based on the game you're playing.

This video is FUCKING AWESOME! SUBBED AND LIKED. Thank you so much for the detailed information and graphs! VERY USFEUL! WHY DOES THIS ONLY HAVE 20K VIEWS?!

At 3:37 He says "G-Sync" RU-vid Subtitle understands cheese sink😂

using G-sync You might initially be confused by this: why is Vsync “On” by default for all games in the NVIDIA Control Panel, even though we told you to turn it off in your games? The Vsync option in the NVIDIA Control Panel is a special type of G-Sync-aware VSync, which only kicks in at high framerates. NVIDIA has optimized this to work well with G-Sync. The Vsync option in your games is the more traditional type, which is best left off. In short, the rule is: Leave VSync enabled in the NVIDIA Control Panel, but disable it from within games. Only disable it for an individual games in the NVIDIA Control Panel if you really need to reduce input latency as much as possible.

Dude, your input lag test is awesome. Must have been hard work to put this data together, therefore you deserve a thumbs up and subscription. Awesome work.

Best Video explanation of vsync in least amount of time I have ever seen on yt and its still relevant in 2021. Props to you!

Would have loved to see more comparison with gsync. I think it is the best technology regarding image quality. The only real downside is that it can be quiet expensive.

I have found Fastsync to be best when I cap the framerate at the refresh rate. If I had adaptive sync I would just cap 1 fps under instead, but my CRT monitor doesn't. I have also noticed that it tends to address tearing at lower framerates without dropping to half refresh. The microstutters seem to hit when you are not at half/full/double/etc. fps compared to the refresh. So though the fps is capped, the slight stuttering is unavoidable below refresh, though I'd still call it a better tradeoff than V-Sync's problems

well the picture made it clear, tho this "front baffa back baffa" exploded my mind.

Fantastically well produced RU-vid video. The information was precise and concise and really helpful! The quality definitely surpasses other RU-vidr's videos. Thank you.

Best info I have seen on this topic after 3 hours of intense searching and youtubing. Great Job. Thank you.

G-Sync does not introduce tearing at frame rates higher than your monitor's refresh rate. When your graphics card can output frames as fast as the monitor's refresh rate, g-sync behaves like V-Sync: high input lag, no tearing. (coming from a G-Sync user)

Summary :V-sync is only good if you only get the same frames as your monitors refresh rate, Fast-sync is the most effective when you have at least x2 or more fps than your monitor's refresh rate. Thank me for the information or I'll steal your monitor.

I come from the humble quakeworld era, with framerates over 1000 and "beggingformercy" screaming crt screens overclocked to 200-300hz in 320*240 resolution. But in that game not only response but also physics where bound to the fps. You could say i developed quite a feel for responsiveness, and ive been a fpsaholic since then, its taking a toll on the old bank account :) but i can feel noticable difference in games like csgo when im at 500fps as opposed to 200 fps. In overwatch i mainly play mccree and i notice that on some maps where the general fps is below the locked 300fps my aim % is lower than on other maps. People have been saying that im making shit up and that the eye cant this and 60fps is enough that. But now i have your video to use as "proof" :D thank you!

Wow! This is really good work. Very informative, very simple, very organized and proven with tests and results. Your video made me understand things I used to read about but never quite understand it. Thanks you!

I find that fast sync works well on some games on badly on other. For example on battlefield 1, it works very well, removes all screen tearing without introducing noticable input lag compared to vsync.

There is actually significant stutter on the V-Sync example.

I really like hearing you say "Buffer" Your accent makes me moist

whats is the diferencie fast sync with triple buffer?

I was having horrible tearing in League of Legends at the 240 Fps cap at 240hz. Running the game in borderless Windowed mode fixed my issue. Ty so much!

great statement, it helps me a lot! great work! keep it up. the best and real top class review one can find here on youtube regarding this topic! cheers!

so what i got from this video is that if you dont want tearing you either want freesync if you have amd and g-sync if you have an nvidia card

Your description makes Fast Sync sound exactly like Triple buffering, or am I missing something?

do a "buffer" counter😂

Nice break down of the Gsync technology. Good work!

I just wanted to say this video was one of the best formatted and most clear and informative videos of its kind. Amazing work!

I'm pretty sure the microstutter in fastsync is un-fixable. Just simply look at how it works, it reduces the input lag by discarding frames that weren't needed in the front buffer. It's impossible to get smooth motion if you're randomly discarding frames.

How about g-sync input lag?

So is fast sync not the same as triple buffering? Edit: Wait, is it like a smart triple buffer that flips the last rendered and back buffer like double buffering but only flips the front and last rendered when needed, like a double, double buffer.

From my experience, Fast Sync has certain frame caps in place whenever you play. For instance, 90, 120, 180 fps and so on. Seems like it locks at 30fps, 60fps or 120fps more than the monitor's refresh rate. The reason it has no tearing is because it will display the last frame instead of having half of new frame to replace half of the image. So, whenever your FPS drops below your monitor's native fps, there's a noticible stutter. But for 60fps users, it's a perfect balance between no input lag and high framerate as it locks itself at certain fps.

This is the best video out there to explain/compare the different syncs. I had so much confusion after viewing Linus video and I am a pretty tech savvy geek. Now they are all clear to me. Thank you very much!

Tearing is overhyped. You can play perfectly well with some tearing. The real problem sources are input lag, lag, and framerate drops.

I'm glad I never cared about screen tearing.

So what exactly would be the difference between Fast sync and triple buffer Vsync? When you use Fast sync, the last rendered buffer and the front buffer act like the front- and backbuffer when you use double buffer Vsync, so shouldn't triple buffer Vsync just do exactly what Fast sync does, adding an additional buffer so the framerate itself can exceed the monitor refresh rate? Is the only difference here the much higher input lag of triple buffer Vsync? And if yes, why is the input lag so much different?

And the award for the most times the word Buffer has been used in one video goes to Chris lol. Great video and very informative.

nice...man you're doing a fantastic job! really shows us how those sync works

When you were showing the after v-sync i still saw tearing on my , and it's a video LMAO

"fix the tearing issue while not INCREASING the responsiveness of the game" shouldn't that be decreasing?

So FastSync is basically V-sync but doesn't cut the framerate in half if it goes below the refreshrate?... A simple fix for Free- and G-Sync: Set a maximum FPS limit of 60, 64, 75, 90, 120, 144, etc. FPS depending on your monitor's refreshrate. There, fixed. Also, if you're an AMD user and you recently bought a monitor that isn't G-Sync, chances are pretty good that you have a FreeSync monitor.

This must have been the best video explaining all the syncing and rendering I've ever seen. Bookmarked for dummies. o/

Well done. I'm glad to see that there are people out there who actually can look past all of the gimmicks and truly look into the specs that actually matter.

Your accent is sooo Austrian, I love it :D

Fast sync is just forced triple bufferred vync?

man kann direkt am ersten "hi" den deutschen akzent raushören :D

Thanks for the very good video. Coming in with no knowledge on how V-sync works it was very helpful.

Best video I saw. RReally in-detailed. Subbed. Keep it up.

just wait for the front buffer then the back buffer then the front buffer then the back buffer then the front buffer then the back buffer. wtf am i watching

Jesus what if I simply want to play CSGO with 144Hz with no tearing?

so the back buffa goes to the front buffa and then the buffa buffas a buffa into the front buffa and then gets put back into the front buffa after it was put into the back buffa?

Man, there is no words tha can describe the perfect job you done on this vídeo! Such good analysis, comparisons, explanations,everything! Congratulations, and you've won another subscriber! haha

Hey Chris, that was one the best explanations I've seen. Thanks man, awesome!!!

I am allergic to the sync word

Really interesting video and very well made. What software was used when creating the vsync animated examples around 1:40??

bafa bafa bafa

Dear Battle(non)sense, I really appreciate the work you're putting into these videos. It seems few tec-tubers do actually put effort into displaying such detailed numbers and shit, as it doesnt really attract the crowd. Kudos for that

By far the best freq. to tearing comparison I've seen on RU-vid.

Nvidia Fast Sync? .. Why didn't they call it NSync? ...oh wait.. but it aint no lie, baby, bye bye bye..

In conclusion, don't use fast sync yet?

can you buffer my buffer in the backside with your frontside?

This was a most informative video. Thank you for explaining this so well. I will keep this in mind when building my next PC.

That is an impressively complete and intuitive to understand analysis.

Why does fast sync cause stuttering?

This video is incorrect. I have tested many games on my and my friend's GSync monitors (PG279Q and PG278Q) and with Gsync OFF and Vsync ON, games do NOT drop to half refresh rate, even on 60, 120, 144 and 165hz. Verified in NVCP monitor technology is set to FIXED Refresh and Vertical Sync to ON. Please don't lie.

Drinking game: Take a shot every time he says the word buffto54u45yk,4,h46,-0l,brl;bmv h0ly shit i;m drUnk

in short: FASTsync is great if you care a lot in the details but you also want to be competitive (while the actual frame rate is faster or much faster than the refresh rate of your monitor)... if you dont care tearing which is almost not percetible in 120 and higher refresh rate monitors, just leave it off cons of not using regular types of V-sync: if you are not using any kind of V-sync OR you use FASTsync there are some issues to come: your GPU renders as fast as it can, so even if the game look like a potato, GPU load will be close to 100% this is bad becasu your system will be more power hungry and also GPU temps will rise. New GPUs are overkill for 1080p so its kinda the case

This video is by far the most informative video on G-sync, Free-sync, and Fast sync I've ever seen. Thank you for this in-depth and very useful video.

If you want to use V-Sync without mouse lag/delay and not buying stupidly expensive tech, cap your framerate at least one or two frames below your refresh rate. Read this for my information. steamcommunity.com/sharedfiles/filedetails/?id=668808553 With Nvidia you have to change your max pre-rendered frames to 1 otherwise it won't remove the pre frames from going above the refresh rate and cause the mouse lag still. I have Freesync here and it works best with 4 frames cap below 144Hz or V-Sync often remains a better alternative when streaming for such because of Freesync incompatibility making tearing still obvious. Also V-Sync doesn't cap the framerate, it syncs hence why you have to do it manually, if it did properly games wouldn't have mouse lag. It depends also from engine to engine on which actually makes the pipeline choke or prevent more ressources from being used, but usually most games don't unless you use their in-game fps cap such as Source Engine. It is best to use RTSS as it provides the most stable frametimes and not restrict engine load to the GPU. Giving you the perfect experience from 60Hz to 144Hz. There's a lot of topics going around this method saying that it causes 2ms of delay in response time, personally. With or without V-Sync/Freesync, I'm pretty sure it was just placebo since all in all it was smooth and enjoyable to play with either while none would ruin my experience. It's up to you testing, I don't think 2ms will make that big of a difference anyway. I play CSGO and can pull off very very good reaction shots with or without. The biggest advantage would be having no tearing, no fps drops, consistent frametime and every single frames be properly displayed as soon as possible without delay because you only allow your GPU to give what you need. (Aka if you have 60Hz and your pre-rendered frames are set to 1 on Nvidia while on AMD you don't need to change anything, V-Sync will perfectly display all the possible frames every refresh without mouse lag when capped to 59FPS.)

1Question Are you from germany?

Thanks a lot Chris for this great video and big respect for your job to make it, it help a lot.

Thank you for the hard work and patience, have a nice day.

Dear Battle(non)sense, Thanks for making this great video. I am new to g and vsynic world since I don't afford to buy expensive parts. Anyways I'm one of those guys that can't rule out what's the main theme of this video unless someone makes it clear for me in more simpler terms. I have recently bought this system: justpaste.it/w9ba And I have 2k 144hz gsynic monitor along with asus rog strix 1080 gpu with other good elements complimented to these parts. So what should I do to get the best result especially in games like Overwatch and CS:GO in order to get best performance? As far as I understand if I don't turn on g-sync while playing Overwatch or CS:GO while limiting my FPS into 144fps then I'll dont get any input lag or feel the stuttering. That means with my intuation and aiming skills... I can spot and shot down enemies rather fast in that way, am I correct? In short would you kindly tell me what should I do to get best performance with this gaming rig that I have spent so much money on it when I play games like bf1, cs:go or overwatch? I'd be really happy if you say it, like I mentioned above, in simpler terms to make it easy for people lile me to understand the point of all the hardwork that you got through in this video. I dont have technical knowledge when it comes to spot the difference so thats why I tried to get best parts to get good performance in my games but if you tell me if I dont follow those steps you told in this video then it makes me sad if I dont get good performance such as if I dont set my monitor refresh rate to 144hz and in game fps to 142fps then I dont get good results. So I'd be happy if you shortly point out what should I follow. Like tell me dont use gsync on CS:Go, and make my fps 144 in game by writing like (max_fpx 144) and set the monitor refresh rate to 144hz. So if I do that I will get good results... I hope? Thanks and keep up with the good work as always! Best Regards. PS: It would also make me happy if other dearly viewers of this video could also help me with this good for nothing gamer here and share their precious opinions with me and direct me to the good path. Thanks in advance!

great video. the latency reports were the best. keep up the solid work.

Outstanding work, this really helped me out a lot!

Thank you so much for video havent seen much fast sync coverage and no testing

You gained a sub ;D great information and not boring gj