When I am on the ground, for example INIbuilds Heathrow and Flytampa Schipol, I get good FPS around 50 to 60 (using the dev mode option). However when I pan the camera from the MCDU to the overhead panel, halfway through the pan I get a lag spike. What exacerbates the issue is rapidly moving the camera around. When I do that my FPS Plummets like crazy but then quickly recovers when I am not moving my mouse around.
I have a 165HZ Monitor and my in game settings are
1920x1080
TAA
Frame Gen: On
TLOD: 200
Terrain Pre-Caching: Ultra
Terrain Vector Data: Ultra
Buildings: Ultra
Trees: Ultra
Grass and Bushes: Ultra
OLOD: 200
Clouds: Ultra
Texture Resolution: Ultra
Anisotropic Filtering: 16x
Texture SuperSampling: 8X8
Texture Synthesis: Ultra
Water Waves: High
Shadow Maps, Terrain Shadows: 2048
Contact Shadows: Ultra
Windshield Effects: Ultra
Ambient Occlusion: Ultra
Cubemap Reflections: Ultra
Light Shafts: Ultra
Bloom: On
Depth of Field: Ultra
Motion Blur: Ultra
Lens Correction: On
Lens Flare: On
Glass Cockpit Refresh Rate: High
I’ve installed the latest AMD Chipset Drivers as well as Nvidia Chipset, deleted my rolling cache but to no avail.
I don’t know if this is helpful info but when looking at my NZXT Cam Settings my CPU is not really under load, it’s kinda just sitting at 20-40%. But my GPU is at like 75-99% Load when MSFS is running.
The stuttering only really happens when I am on the ground (only tested EGLL and EHAM) but when I am cruising at FL350, it’s smooth as it can be.
Running all of the graphics settings on ultra is causing the stutters most likely. Turn on the dev mode fps counter when you are sitting at an airport and it will likely be a lot of red with cpu times way higher than gpu times (the stutter in the gpu waiting for the cpu to finish its work, this is why you want to balance the hardware you have with the sim settings and not just crank everything to ultra). You need to turn down the Ultra to High as a starting place to see how that impacts your system and use case. Ultra is very heavy on the cpu and visuals don’t change all that much from High (there are YouTube’s showing this). There are long threads on here about the impacts of each graphic setting but just try setting them all to High and you will likely see improvement. Also on the ground stuttering is common of your settings are too high as on the ground has a lot more to render in terms of objects with high levels of detail. That’s why cruising up high gives higher frame rates and smoother/less or no stutters. Oh and those CPU usage percentages are misleading. 20% to 40% is the average across all cores of your CPU and most games heavily use just a few cores. If those few cores are pegged at 100 % then your GPU has to wait on the cpu and you can get stutters. So don’t just look at average cpu usage, either use the dev mode fps counter and try to get more green and yellow colors where things are not cpu bound, and/or get a free hardware monitoring app to show you the cpu threads broken apart and that will show you the details to know why/when you are “main thread limited” which means a few cores have hit 100% despite the overall average across all cores sitting at say 50%.
Is that a gsync monitor? Anyway, it’s a high-refresh-rate monitor. So what you need to do in terms of vsync may be totally different than what I am doing.
I have a 60hz screen with a 7800X3D and a 4090 at 4K. It is totally smooth. Yours should be too. For my 60hz setup I get best results running vsync ON in the Nvidia Control Panel (that’s important) but vsync OFF in the game.
As I said though, your monitor setup is totally different and you may do best with the opposite settings. I’m unfamiliar with 165hz refresh rate screens, but I’m sure someone here will be. You left the best part of your settings out (vsync in sim or nvcp?/taa?/dlss?/dlaa?/frame limiter?)
TAA, No DLSS, Frame Gen On and no VSYNC anywhere. I have default Nvidia Control Panel Settings. I might try setting my monitor to 60Hz in the Nvidia Control Panel to see if that does anything. My monitor does have GSYNC, however I have it off.
Oh, I think that may be your problem. My sim works best when I have vsync on in the NVCP…I would guess with your gsync monitor you need at least some sort of sync to eliminate the stutter.
I don’t know that you necessarily need to drop your refresh down to 60hz…I think the problem is more that with no gsync/vsync going at all, your frames are running unconstrained and in certain situations there is frame jumbling going on. My setup does the same when I turn off vsync.
If sync doesn’t work then you can experiment with the “Max Frame Rate” limiter in the nvidia control panel (NVCP). Some people with gysnc get good results when having gsync on and then limiting in NVCP to just below their refresh rate, like in your case something like 160. However in my experience even with a 7800X3D there will be scenarios where you will be cpu-bound and 165 fps or 163 fps isn’t possible at 4K. You being at 1080p though, may be able to achieve that fps in some places. But I think you need some sort of sync.
I finally found a better fix for stutters. I recommend do a bios update first , then super important settings in bios is enable Global C state and PBO. In windows install latest chipset drivers from amd or mobo manufacturer (version [7.02.13.148 and above) and change the power plan to balanced only.