I had really bad stuttering recently, spent ages changing settings removing addons etc- deleting my rolling cache fixed it- just saying 

10 hours ago, Souris Lemur635 said:

Just tried all of this settings but nothing either. It's all CPU limited.

I know this is a long shot but are you running a high-performance power profile? Not sure how much impact it has on modern CPUs or the AMD CPUs but there's throttle mechanics built into the Windows power profiles, so maybe the stuttering could come from delayed response to CPU boosting if you're at Balanced setting or something. I run Process Lasso and always set the Bitsum Highest Performance profile on all my performance intensive applications.

EDIT: Just noticed you've already tried that. My bad.

Is resizable bar enabled?

14 hours ago, LazyEvul said:

I seem to be seeing some improvements on my end by enabling Precison Boost Overdrive and Medium Load BoostIt in the BIOS - these settings should in theory make the CPU boost a bit more aggressively, so it's possible that's helping smooth things out a little. I'm still not able to recreate some of the best-case scenarios in this thread, and I'm still getting heavier stutters when I run out of VRAM in scenery-heavy areas, but it seems like TLOD 200-300 might be mostly playable at this point.

 

Just make sure you aren't pushing too much voltage with all those settings, with the whole too-much-voltage for X3Ds we had, as motherboards had a tendency to push more than needed and even more than what the BIOS reported.

 

Edited June 20, 20232 yr by Sethos

2 hours ago, Sethos said:

Just make sure you aren't pushing too much voltage with all those settings, with the whole too-much-voltage for X3Ds we had, as motherboards had a tendency to push more than needed and even more than what the BIOS reported.

Yeah I've got my BIOS up-to-date and the voltages look good in HWiNFO - SOC voltage in particular, the troublesome one, is comfortably below the 1.3V limit.

I'll probably keep experimenting with other solutions still though, as it does seem like others are managing better MSFS performance without these settings. Just glad to be getting decent performance at this point.

 

7 hours ago, Sethos said:

I know this is a long shot but are you running a high-performance power profile? Not sure how much impact it has on modern CPUs or the AMD CPUs but there's throttle mechanics built into the Windows power profiles, so maybe the stuttering could come from delayed response to CPU boosting if you're at Balanced setting or something. I run Process Lasso and always set the Bitsum Highest Performance profile on all my performance intensive applications.

EDIT: Just noticed you've already tried that. My bad.

Is resizable bar enabled?

Just make sure you aren't pushing too much voltage with all those settings, with the whole too-much-voltage for X3Ds we had, as motherboards had a tendency to push more than needed and even more than what the BIOS reported.

 

Resizable bar was on by default, tried disabling it but it didn't make any difference either.

58 minutes ago, Souris Lemur635 said:

Resizable bar was on by default, tried disabling it but it didn't make any difference either.

Did you try other planes? On your video you are using the A310 and on the videos you used as benchmark the users were using other airplanes. Try using other planes to be sure. I wouldn’t say the A310 is well optimized.

Also, I would recommend to recheck if you aren’t capping your FPS through any means (like the Nvidia Control or third party apps). What I saw on your video remembers me what I saw on my end when my FPS were capped (in my case I was using Riva Tuner).
 

Stuttering is a known issue, including on other games like the Witcher 3 and Cyberpunk, when turning on frame generation + capped FPS.

Edited June 20, 20232 yr by ca_metal

On 6/20/2023 at 9:26 PM, ca_metal said:

Did you try other planes? On your video you are using the A310 and on the videos you used as benchmark the users were using other airplanes. Try using other planes to be sure. I wouldn’t say the A310 is well optimized.

Also, I would recommend to recheck if you aren’t capping your FPS through any means (like the Nvidia Control or third party apps). What I saw on your video remembers me what I saw on my end when my FPS were capped (in my case I was using Riva Tuner).
 

Stuttering is a known issue, including on other games like the Witcher 3 and Cyberpunk, when turning on frame generation + capped FPS.

I did, the video at LAX is using the A310 so I wanted to compare directly to that.

And no, nothing is being capped, the only thing in the Nvidia Control Panel is G-Sync enabled.

https://streamable.com/u3sxh5

Exchanged my chip for another 7800X3D to check just in case, doesn't seem that it was the issue. Really don't know what to do now 😐

Just now, Souris Lemur635 said:

https://streamable.com/u3sxh5

Exchanged my chip for another 7800X3D to check just in case, doesn't seem that it was the issue. Really don't know what to do now 😐

https://streamable.com/eyx5iy

I deleted the nool vdgs, and the stuttering of some airports such as ebbr, eddk, essa, and lwsk disappeared immediately.

I haven't had time to test thoroughly enough to say this solved it, but I turned off the aero effects in Windows. Desktop Window Manager is what handles those, and it has a habit of going crazy and using 90+ percent of the GPU while the sim is running.  The only real difference Aero makes is that the task bar is nicely shaded and transparent when it's on, and looks more like the one from Win95 when it's off.  Like I care when I'm at FL350.  So far, it seems to have reduced the stutters which, for me, were almost always associated with DWM going nuts. 

 

5 hours ago, ljk811 said:

I deleted the nool vdgs, and the stuttering of some airports such as ebbr, eddk, essa, and lwsk disappeared immediately.

I'm not using that addon.

To others that have the same combo (4090 + 7800X3D), can you please post a video showing the performance you get with it? Preferrably with a heavy 3rd party aircraft and scenery, thanks!

3 hours ago, Souris Lemur635 said:

To others that have the same combo (4090 + 7800X3D), can you please post a video showing the performance you get with it? Preferrably with a heavy 3rd party aircraft and scenery, thanks!

I'm sure you've seen the ones I've posted at this point. Let me know if there's anything I can assist with, something that perhaps is more 1:1 to yours.

3 hours ago, Sethos said:

I'm sure you've seen the ones I've posted at this point. Let me know if there's anything I can assist with, something that perhaps is more 1:1 to yours.

Yeah I saw the KLAX one. Do you think you could test the A310 at KSEA runway 16L, 15:00 local time and clear skies? For reference: https://streamable.com/u3sxh5

5 minutes ago, Souris Lemur635 said:

Yeah I saw the KLAX one. Do you think you could test the A310 at KSEA runway 16L, 15:00 local time and clear skies? For reference: https://streamable.com/u3sxh5

Sure, assume default KSEA. Any particular settings? Normally run mostly maxed out, FG ON capped at 90FPS and 1440p but set DLDSR resolution to 4K in my last one, to push the GPU even further.