Hi,

 

SU 3 introoduced the "max framerate" option.

While I understand the difference between a target-setting and a max (= capped) setting I'm not sure how they might influence each other or which one should be preferred (if any) or if they should be used in combination.

 

I'm running a 5070 TI in 4K with a G-Sync Monitor with DLSS balanced and FG x2

 

What are your observations on these options?

 

Thx

I use a 144Hz 4K Gsync compatible monitor and capped my frames at 36, resulting in 72FPS with frame gen. Only on really heavy scenarios my FPS drop down to maybe 30-32FPS, otherwise those 72FPS are maintained all the time resulting in a super smooth experience. Best find ever this FPS cap, glad they added it as a menue option. BTW: I use a mix between ultra and high settings and turned all options for the airport off (characters, airport traffic and parked aircraft).

Thank you! 

 

So my monitor could do 240 Hz max. 

Should I set my max frames to a fraction of that? (120 is, of course, unrealistic...) 

Another option to consider instead of frame rate capping is to just run without a limiter and use AutoFPS to enable better visuals (TLOD) with the extra headroom instead of wasting it… and potentially get lower dips on landing.

Let’s say your average FPS is 40 or 80 with Frame Gen. so you cap at 40. During flight, your frame rate could probably go to 50 but by capping it, you’re not getting anything from this lighter load. Then when you land at a busy airport, your FPS dips to 30. So even your cap is not helping here because your CPU is bottlenecked so you still see some impact on performance when landing. Now you could cap your FPS at 30 instead, but then that means your capping your overall experience for the worst case situation and most of the time you’re wasting all that performance headroom.

Now if instead you ran Auto FPS it would likely target your average FPS of 40, then during flight, you’d see TLOD ramp up to give you better visuals, and when landing it would lower TLOD to help deal with the dip, and you might actually see less of a dip on landing than you did before. So you get better visuals when you have performance to spare, and less of a dip on landing.
 

 

Sure, you can use AutoFPS to set a limit as such that you can use the spare overhead when possible. But limiting the FPS has also a positive effect when having an overhead: less watts and thus less heat. Cooler system also means less noise. 

And my personal experience is that you never get the same smoothness using AutoFPS compared to a properly set up internal FPS limit. And of course, you need the knowledge for putting the right settings into AutoFPS, quiet some tweaking necessary. 

Last, I do not know how well and consistent AutoFPS really holds an FPS limit. If it is e.g. set to 36 and you can only maintain this on a big airport with TLOD 100, but AutoFPS turns it up to 400 or even more during cruise, doesnt changing it all the time when your FPS are close to 36 lead to additional microstutters? Or visually effects because you can see the LOD changes? 

I have never capped my framerates. I have a set level of detail that I want to see, and I let the simulator decide whether it can run it smoothly or not 

I cap mine at 30, and use conservative settings.

Used to cap through a new parameter in UserCfg.opt, but now I returned to RTSS, and have an FS 2024 profile for it with 30 FPS limit.

My objective is not only to be able to get a more stable FPS throughout a sim session but also, and above all, to save the stress from my CPU and GPU as well as to save on the electricity bill... Not that my rig would do crazy consumption with an RTX 3060Ti and a Ryzen 5600x, but still I am sure it'll stress the hardware less than with uncapped settings, and I really don't think I would notice the difference...

For those like me with a Gsync monitor or TV (LG C1 120hz) I have tested the below settings and, trust me, it worked. Now, I have a 5090, but I am pretty sure it will work on any new Nvidia 50 series Video Card.

The first point is: Turn off you Gsync for MSFS2024, yes, I know, it is painful, and that is why I tried many times before confirming that it is not working correctly and is having a high latency. You can turn off GSYNC for MSFS2024 only and it will work, you can use nvidia inspector for that. Select the Microsoft Flight Simulator 2024 as your profile and turn-off all gsync related options.

second point is turn on your Vsync in the same profile. In my case I reduced the refresh rate to 100hz (Instead of the 120hz) to cap the FPS to 100fps.

then in MSFS 2024, select the frame generation to 3x (or 4x). that means if your original fps are 40, it will generate 120 at 3x or 160 at 4x, but your monitor will be capped at tour monitor refresh rate.

you can follow a thread about this in here: https://forums.flightsimulator.com/t/performance-boost-for-strong-hardware-g-sync-off-multi-frame-generation-msfs-2025/727473

Try an let me know.

1 hour ago, ttbq1 said:

For those like me with a Gsync monitor or TV (LG C1 120hz) I have tested the below settings and, trust me, it worked. Now, I have a 5090, but I am pretty sure it will work on any new Nvidia 50 series Video Card.

The first point is: Turn off you Gsync for MSFS2024, yes, I know, it is painful, and that is why I tried many times before confirming that it is not working correctly and is having a high latency. You can turn off GSYNC for MSFS2024 only and it will work, you can use nvidia inspector for that. Select the Microsoft Flight Simulator 2024 as your profile and turn-off all gsync related options.

second point is turn on your Vsync in the same profile. In my case I reduced the refresh rate to 100hz (Instead of the 120hz) to cap the FPS to 100fps.

then in MSFS 2024, select the frame generation to 3x (or 4x). that means if your original fps are 40, it will generate 120 at 3x or 160 at 4x, but your monitor will be capped at tour monitor refresh rate.

you can follow a thread about this in here: https://forums.flightsimulator.com/t/performance-boost-for-strong-hardware-g-sync-off-multi-frame-generation-msfs-2025/727473

Try a let me know.

What’s the issue with G-Sync? It seems to work perfectly fine for me on my C1. Note G-Sync requires V-Sync on in Nvidia Control Panel/App to work properly. 

With my 4090 with 2x FG I was consistently getting 100FPS on the ground and hitting the C1 limit in the air of 117FPS with max settings. I’m shocked that you cannot get 117 (or 120 without G-Sync) with 2x Frame Gen on a 5090. 

Edited August 23, 2025Aug 23 by Virtual-Chris

32 minutes ago, Virtual-Chris said:

What’s the issue with G-Sync? It seems to work perfectly fine for me on my C1. Note G-Sync requires V-Sync on in Nvidia Control Panel/App to work properly. 

With my 4090 with 2x FG I was consistently getting 100FPS on the ground and hitting the C1 limit in the air of 117FPS with max settings. I’m shocked that you cannot get 117 (or 120 without G-Sync) with 2x Frame Gen on a 5090. 

I can, if I don't use any Vsync it goes up to 180fps, but under heavy scenarios at 2x it can go up to 70 and with stutters.

By disabling Gsync the mainthread is less congested avoiding stutters under heavy scenarios...and also my 5090 is only working at 50%-60% dropping the power consumption to 300w instead 500w.

In other words I am trying to get as much as possible from MFG without pushing the video card to the limits and reducing latency on my cpu. 

11 hours ago, chatman said:

Thank you! 

 

So my monitor could do 240 Hz max. 

Should I set my max frames to a fraction of that? (120 is, of course, unrealistic...) 

Yup. Set it to 60 and your FG should be able to qadruple it.

Edited August 23, 2025Aug 23 by Farlis

1 hour ago, ttbq1 said:

Try an let me know.

As the guy in the off. forums made clear several times, this only works for very fast rigs where you can achieve thosa high FPS numbers and if you do not use heavy scenarios with low FPS. Even with my hardware I am far away from those numbers, also because MFG is not an option for my 4090. So personally I am better of with a limit nicely within the VRR range of my Gsync compatible monitor and Gsync on. Tested above approach and it resulted in worse smoothness.

My Dear TAA....

8 hours ago, ttbq1 said:

I can, if I don't use any Vsync it goes up to 180fps, but under heavy scenarios at 2x it can go up to 70 and with stutters.

By disabling Gsync the mainthread is less congested avoiding stutters under heavy scenarios...and also my 5090 is only working at 50%-60% dropping the power consumption to 300w instead 500w.

In other words I am trying to get as much as possible from MFG without pushing the video card to the limits and reducing latency on my cpu. 

Whatever works for you I guess. But I’ve never seen so many bizarre solutions to try and reduce the occasional stutters…  only in flight sim forums. I just setup my system to run the way it’s supposed to… G-Sync, V-Sync, Reflex, max settings and it works flawlessly, especially now I have Auto FPS.