I have an ASUS ROG Swift PG279Q Gaming Monitor - 27" 2K WQHD (2560 x 1440) IPS, overclockable 165Hz, G-SYNC™ .

While everything works great and smooth from 48fps and over, any frame rate below 48  ( from 30-40fps especially) start to be  not smooth with a short of micro-stuttering.

I noticed that many users  have locked their  fps to 30 and have great smooth results which i never so far experienced that result.  I have a true G-sync monitor with  1-144mhz Variable Refresh Rate Range, so i am still trying to understand where is the issue.

thanks

I suppose you already tried to not lock fps? I think that would defeat the purpose of G-Sync...? I also have a true G-Sync monitor (ViewSonic) and performance is smooth all the way: I only get little stutters whenever a lot of stuff is being loaded (only in certain situations) but that's not really a G-Sync problem. I haven't locked fps and v-sync is off in MSFS. My monitor can also be overclocked but I have that turned off: you might check if yours is overclocked or not. It's been a while since I set everything up but it more or less worked out of the box for me.

6 minutes ago, tup61 said:

I suppose you already tried to not lock fps? I think that would defeat the purpose of G-Sync...? I also have a true G-Sync monitor (ViewSonic) and performance is smooth all the way: I only get little stutters whenever a lot of stuff is being loaded (only in certain situations) but that's not really a G-Sync problem. I haven't locked fps and v-sync is off in MSFS. My monitor can also be overclocked but I have that turned off: you might check if yours is overclocked or not. It's been a while since I set everything up but it more or less worked out of the box for me.

Yes, with or with out fps lock, everything below 40 starts to look and feel not good. I think has to do with the main Hz of each display. A Fast Monitor of 144hz and over possibly don't look so good on 30s fps area compared with a 60hz Monitor. G-Sync works all the time i could see from Monitor overlay indicator ( synchronize refresh rate with gpu fps ).

I am ultra pleased with G-sync and the overall performance of MSFS. The problem starts on heavy crowded airports where fps start to decrease from 40-30fps and starts to look/feel weird. And this is the part that i am confused as many other users have great smooth experience with 30fps... 

 

 

41 minutes ago, Seth2021 said:

The problem starts on heavy crowded airports where fps start to decrease from 40-30fps and starts to look/feel weird. And this is the part that i am confused as many other users have great smooth experience with 30fps

Locking to 30fps works great on a 60hz monitor, but not on a 144hz monitor, that is my experience in my case.

I would suggest to set your monitor to 120hz then lock in-game vsync to 20fps, this will lock you monitor to 40fps, then manage your in-game settings to sustain 40fps, you will be glad you did, I get total smoothness al around on my curved 144hz (set to 120hz) MSI monitor.

Edited January 13, 20224 yr by CarlosF

Your refresh rate isn't a problem. The reason being that your monitor's refresh rate (with G-Sync enabled) changes dynamically to match the FPS (although you seem to acknowledge that in your reply), so even if the monitor is rated as 165Hz, that is only true when not using G-Sync and the refresh rate is locked at its highest potential. If you're locking refresh rate, then G-Sync isn't working and you're defeating the purpose.

Stuttering can be caused by many things, like CPU not up to par with the GPU to feed frames efficiently, inadequate RAM amount or speed... Streaming issues... I've read about many causes. Might be worth a Google search.

57 minutes ago, CarlosF said:

Locking to 30fps works great on a 60hz monitor, but not on a 144hz monitor, that is my experience in my case.

I would suggest to set your monitor to 120hz then lock in-game vsync to 20fps, this will lock you monitor to 40fps, then manage your in-game settings to sustain 40fps, you will be glad you did, I get total smoothness al around on my curved 144hz (set to 120hz) MSI monitor.

Yes i changed all available Monitor refresh rates ( 144,120,100,85 even 60) but didn't work well below 40fps. I also think that 30fps ( and 30-40 fps range )  is not so smooth on a 144hz ( and over) monitor.  

After many tests, the gold spot at least for my system is fps locked to 48fps ( with G-sync on)

Edited January 13, 20224 yr by Seth2021

30 minutes ago, March Hare said:

Your refresh rate isn't a problem. The reason being that your monitor's refresh rate (with G-Sync enabled) changes dynamically to match the FPS (although you seem to acknowledge that in your reply), so even if the monitor is rated as 165Hz, that is only true when not using G-Sync and the refresh rate is locked at its highest potential. If you're locking refresh rate, then G-Sync isn't working and you're defeating the purpose.

Stuttering can be caused by many things, like CPU not up to par with the GPU to feed frames efficiently, inadequate RAM amount or speed... Streaming issues... I've read about many causes. Might be worth a Google search.

I could confirm that when i lock fps with RTSS to 60fps for example, G-Sync works great with out any issue. As i mentioned i have always enabled Monitor's fps counter indicator so i could see clear if its synchronized when fps is below 60. 

I understand that CPU is the main bottleneck on MSFS and i could decrease settings ( terrain level of detail etc) to have a stable smooth experience with 40fps and over. But as i have a good pc-system i always wondering why i never had a smooth experience on 30s area while some other users do

I never go below 30fps even on the most demanding heavy  crowded airports like KLAX,KJFK etc at ultra settings with 200tod 

2 hours ago, Seth2021 said:

I have an ASUS ROG Swift PG279Q Gaming Monitor - 27" 2K WQHD (2560 x 1440) IPS, overclockable 165Hz, G-SYNC™ .

While everything works great and smooth from 48fps and over, any frame rate below 48  ( from 30-40fps especially) start to be  not smooth with a short of micro-stuttering.

I noticed that many users  have locked their  fps to 30 and have great smooth results which i never so far experienced that result.  I have a true G-sync monitor with  1-144mhz Variable Refresh Rate Range, so i am still trying to understand where is the issue.

thanks

It depends on your expectations. I also have a G-Sync monitor but 30 fps @ 30 Hz does not look smooth to me. It's smoother than 30 fps @ 144 Hz but I start to perceive MSFS smooth at 40+ fps.

Locking the framerate at 30 fps is a way to get a more or less constant value and cope with the situation but it's far from ideal.

2 hours ago, Seth2021 said:

I have an ASUS ROG Swift PG279Q Gaming Monitor - 27" 2K WQHD (2560 x 1440) IPS, overclockable 165Hz, G-SYNC™ .

While everything works great and smooth from 48fps and over, any frame rate below 48  ( from 30-40fps especially) start to be  not smooth with a short of micro-stuttering.

I noticed that many users  have locked their  fps to 30 and have great smooth results which i never so far experienced that result.  I have a true G-sync monitor with  1-144mhz Variable Refresh Rate Range, so i am still trying to understand where is the issue.

thanks

@Seth2021 I have the same issue as you do. Locking my FPS to 30 will result in stutters all the way. Going to 60 I have the smoothest running sim. Unlocking will give me tearing.

1 hour ago, GEKtheReaper said:

@Seth2021 I have the same issue as you do. Locking my FPS to 30 will result in stutters all the way. Going to 60 I have the smoothest running sim. Unlocking will give me tearing.

Same here with Asus pg348q.

I have the PG279Q with refresh set at 144Hz, Gsync on(so 144Hz really means nothing as regards MSFS), 30fps locked with NVCP (see my specs to understand why), and I get perfectly smooth performance as long as my GPU and CPU keep up. 30 fps will never be as smooth as 40, or 50, or 60, but of course we all know that. At the same time 30fps without stutters is dramatically better than 30fps with stutters. I find even the small increase to 35fps to be a dramatic improvement over 30, but my system just won't allow 35fps consistently. Looking at your system specs causes me to assume you have MSFS settings maxed causing the drop in fps. Even with the fastest hardware available, NEVER have we been able to max sim settings and maintain consistently high fps...don't see that ever changing.

24 minutes ago, somiller said:

I have the PG279Q with refresh set at 144Hz, Gsync on(so 144Hz really means nothing as regards MSFS), 30fps locked with NVCP (see my specs to understand why), and I get perfectly smooth performance as long as my GPU and CPU keep up. 30 fps will never be as smooth as 40, or 50, or 60, but of course we all know that. At the same time 30fps without stutters is dramatically better than 30fps with stutters. I find even the small increase to 35fps to be a dramatic improvement over 30, but my system just won't allow 35fps consistently. Looking at your system specs causes me to assume you have MSFS settings maxed causing the drop in fps. Even with the fastest hardware available, NEVER have we been able to max sim settings and maintain consistently high fps...don't see that ever changing.

The fps drop is normal and as expected in heavy populated high demanding sceneries and airports. But for sure i never go below 30s range at ultra settings. For example if i lock my fps to 30 in a light airport scenery ( with out fps lock i have 100 to 120fps ) the result is ultra bad with micro-stuttering and laggy. So this is not a problem of MSFS maxed out settings. 

My main issue is why a Monitor which has a G-sync hardware capability with a variable refresh rate from 1-144mhz to dont have pleasant results in 30s-40s area which is the average fps in heavy demanding airport sceneries. 

I got ASUS VG27a, overclocked to 165 Hz, G-SYNC compatible monitor. I´m quite pleased having V-sync disabled in the sim but enabled in NVCP and set to fast V-sync. Latency mode set to ultra. Also inside the NVCP I have capped my frames to 55. Smooth ride and happy camper...

59 minutes ago, Seth2021 said:

For example if i lock my fps to 30 in a light airport scenery ( with out fps lock i have 100 to 120fps ) the result is ultra bad with micro-stuttering and laggy. So this is not a problem of MSFS maxed out settings. 

My main issue is why a Monitor which has a G-sync hardware capability with a variable refresh rate from 1-144mhz to dont have pleasant results in 30s-40s area which is the average fps in heavy demanding airport sceneries. 

Sounds like you could be shifting the work away from the gpu and placing it on the cpu? Try and become gpu limited. don’t cap frames so low. Try 40fps. 
Also if you cap frames, try using RTSS, as it will Smooth your frame time out when using gsync. 
 

also, below 30fps I believe LFC kicks in, even with g-sync ultimate. This in effect causes your display to display 60hz for 30fps. Whereas at 31fps it will be 31hz. Can cause juddering. And is awful below 30fps anyways. 
 

I’d try locking at 40fps. And play with settings to keep it there, fluently and consistently. Use RTSS, and then see how g-sync feels.

 

also, these days, 30fps is really bad on high hz monitors, especially OLED displays. Much more noticeable than older monitors and TVs. 40 fps is ok, but 60fps is the gold target. 

Edited January 13, 20224 yr by Ianrivaldosmith

I experience the same issue as the OP. I wonder if it is due to the fact that g-sync is not good at correcting fast fluctuations in frame rates. Certainly around heavy scenery areas the FPS can fluctuate quite wildly at times.

I settled on using RTSS locked at 40fps and have been reasonably happy with the results. Generally smooth performance down to 30 and even a little below, apart from those stutters induced by loaded in assets in denser areas.

As Ian said 60fps is truely a beautiful thing in the sim and I live in hope that one day in the future we can look forward to that.