just been messing about there with sliders now my gpu is about 90% utilisation and im getting 28fps sitting at egll
sounds like a duplicate topic of :
May be you find usefully informations thereā¦
That sounds better. There are other things you can do for optimisation, but just keep checking on whatās limiting you when you tweak the settings. You may not be able to get everything on Ultra. Turn clouds to āHighā instead (there isnāt much difference anyway) but it may help CPU a bit more. On the ground at EGGL is dense though so optimising your settings there will lead you to have much smoother experience elsewhere that isnāt as intensively dense scenery wise.
There are other things you can also try.
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In Windows graphics settings check what Hardware accellerated GPU Scheduling is set to mot people seem to report it being better turned OFF
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In FS are you using VSync if so what framerate and frequency are you using? What frequency/refresh rate do you have your monitor at? The best settings seem to be with refresh rate of monitor at 60HZ, VSync ON and FPS set to 30 (for me).
ā In Nvidia control panel 3D setting, check :
- Low Latency Mode ā ON
- Power management Mode ā MAX PERFORMANCE
- Preferred refresh rate ā highest available
- Texture Filtering Quality ā high performance
- VSync ā use 3d app setting
ā In NVidia Control Panel - >Change Resolution
- set res of diplay at 60Hz for 30fps
IN FS
- VSync ā ON
- Frames ā 30
Go back and check with dev mode FPS counter at heathrow and see what happens to your FPS (should be 30FPS locked). Pan around your cockpit view and se if itās smoother or jittery etc. For me itās buttery smooth.
There are lots more settings to tweak, but always try to keep your CPU from being limited and your GPU busy but not overheating so around 70C.
There are also many threads on this forum on hints and tips. The ones Iāve listed are what Iāve found useful to create a buttery smooth experience in FS. Others will have other suggestions that have worked for them. There is no one solution fits all, but balancnig CPU/GPU load is absolutely key to a better experience with running FS.
In the nvidia control panel, ensure that under āProgram Settingsā for MSFS CUDA - GPUs is set to your 3090 and OpenGL Rendering is also set to it
In Windows settings - Display - Graphics, make sure FS is set to High Performance.
Make sure your windows powerplan is set to give your CPU all the juice it needs.
Your system should be perfectly capable of 4K Ultra at at least 40-50fps, probably even 60. Something somewhere isnāt right with how you have it set up.
and Iād only add to that try the latest NVidia drivers too (Iām running latest game ready ones) and not the default ones that come with Windows or with the build if it iwas a prebuild PC. But yes 4K at 40-50fps should be possible (maybe not at heathrow though!). Personally Iāve locked mine at 30FPS with VSync as I get a much FS smoother experience overall. It doesnāt even feel like just 30FPS it is so smooth. FPS isnāt really the metric itās made out to be but you certainly want a least 30.
he also not report that this is not able .. the report is that the performance gap starts after 1ā¦2 hoursā¦ and related to this exist the mentioned topic with a lot of hints 
and related to the performance at ground a big airports exists topics as wellā¦
Ah right, my bad.
Teach me to only read the title and the last post by the OP 
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My assumption is: there are two topics @tom757xx mixed..
The issue where users report a performance loose after xā¦hours and a to high setting of LOD which let the āone coreā run into the limit. In special for these big resolutions ( tom, you can see you resolution in dev-tool , now that you have open it -we can not read it because pictures are compressed ).
For second part I would recommend try a LOD of 150-200.
And tom.. right click on taskmanager-cpu-diagram and choose āshowing separate graphsā ( not know how its called in english ).
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Umm, I do not believe that is correct. I run an RTX3080 with Ryzen 7 3700X at 4K and most all setting at Ultra and my GPU is pretty much pegged at 90 - 100%. OK, so the 3090 has a bit more horsepower, but emphatically NOT enough more to make it run at the stated 20 - 30%. There is something else at play here.
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yep.. if the CPU can not deliver the data, you can own a rtx9090 from year 2099 and you will not be faster. About utilization and current situation where in some situations the CPU limits , exist so many topics.
The 3090 isnāt overkill in 2D either. Whether itās 4k resolution, particular graphics settings, even how and where you fly, there are a lot of use cases that can easily max out the 3090.
I posted similar win-win situatuion here:
one core at max and in this situation the GPU can also show here potential. But as mentioned there are other situations as well where the current limiting one-core can not drive the GPU at 100% ( also not my 2080TI ). Its not so often, but in high details airports I get also only about 25fps.
Thats what I mean with that we already spoke in multiple topics about these 
As above mentioned is the situation in VR also a bit different..
You donāt necessarily want the GPU maxed out though. I have mine locked at 30FPS and about 68% utilisation at 4K. I find it gives me extra headroom for fluidity when departing and arriving at scenic dense airports. Fluidity(smoothness) should be the goal not solely FPS. 30FPS looks very fluid if you get it steady no matter what you are doing in FS. There are many people that seem to aimlessly try to maximise FPS because they think it will be smoother and it often isnāt. They can get 50-60 FPS above the clouds but 25 and stutters while landing. Whatās the point in that? A fluid 30FPS with no stutters is the way to go. Refresh rate of monitor is also another factor to help maximise smoothness. So 60Hz/60FPS or 60Hz/30FPS etc will be better than non whole multiplier ratios in this regard. A fancy 140Hz monitor of little use with FS at that setting and may just be detrimental if left at that refresh rate.
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With heading tracking, 30 fps is noticeably choppy for me. Iād prefer vsync and a higher, variable framerate, than locking it down at 30 fps.
This is all subjective though. Some people are happy as clams with 20 fps. I was just pointing out that people can easily run out of GPU trying to run the simulator in their preferred use cases, even with the highest end hardware available.
Undoubtedly in certain scenarios they can be maxed out. I havenāt tried head tracking but I can see how that that might be different. Have you tried 30fps with headtracking with the settings I listed in a few post previously. Itās so fluid moving the mouse around to change the view it would be strange not getting similar with headtracking. I guess there must be extra processing involved though with constant motion.
I was surprised at 30FPS and initially skeptical/ reluctant to go there but was so impressed when I did that itās remained there as my go to optimisation. Along with VSync ON and in my case TV refresh rate 60Hz at 4k output. Consistently smooth most of the time no matter what Iām doing in FS.
20FPS no definitely no. Sub 20 is very noticeable. 20 maybe fine for some depending on spec of system. 30 is fluid though. Anything greater not required for flight simming. Agree it is totally subjective.
Yeah, I played around a lot with a 30 fps vsync when the simulator was suffering from some bad stuttering bugs a few updates back. I usually play at 60 fps vsync lock with 80% render scale, and Iām at 60 fps most of the time. As soon as I move my head, I can easily tell what framerate Iām running at, and the nuances in that head motion really bring out the differences between 60 and 30. But even on approach, Iād rather have my framerate dropping from 60 to 40-45, than suppressing it down to 30. It helps with those fine scale movements on the flare and rudder. I donāt really notice a stutter when the framerate is variable, but again thatās a subjective experience some users may be much more prone toward. Instead I notice those stutters when the CPU is limited, and Iām almost always GPU limited on my current settings.
I should add that at 30, the sim is more than playable. Itās not like I have to have 60. But I can definitely see the chop at 30. 60 is butter to me. I donāt think I drop below 30 into the high 20s enough that getting that little bit of overhead back would be beneficial.
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If 4k limited to 30fps is a problem then try max 45, vysinc on in NVCP or leave it off altogether. Otherwise you have to lower CPU intensive settings which IMO is pointless if your GPU isnāt working at the 100% it was designed for.
Yeah so a trade off there 80% render scale to get (close to) locked 60FPS. Itās interesting to hear all the different scenarios and hardware considerations that people make decisions on. I donāt think there is a hardware combo CPU&GPU currently on the market that can run FS 60FPS@4K constant.
Maybe future improvements in software/drivers are the best hope in that regard. I still think there should be optimiser tools for FS available for everyone, making recommendations to tune their systems. There are far too many variables at play for even tech savvy people to fully comprehend.
The head tracking itself doesnāt cause any performance hit on Flight Simulator, since itās all CPU based running on a separate process and core that Flight Simulator isnāt even using anyway.
The camera movement did cause a hit with SU5 though because of the culling of off screen objects they implemented to make the simulator fit on an Xbox. Every panning motion was causing the simulator to recompute the scene, and that was causing massive stuttering. They fixed this after an outcry by users by adding a feature to disable the aggressive off screen culling.
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