Turns out I messed up one of the keys - I set PowerMizerEnable to 1, not 0, doh! - but even after fixing and restarting, still had the latency. BUT, I then created the keys in a second 0000 folder as you suggested (I’d already done the one with the most keys, as suggested in the video), and now the latency is waaaay down in the green, vast improvement! I think I’d already gotten the stuttering I was seeing in MSFS under control (combination of ParkControl and possibly disabling Windows’ Print Spooler), but this certainly can’t hurt. Thanks again!
Frequent scenery Stutters on a top-of-the-line hardware with high FPS: 7950X3D + RTX4090 (2D and VR)
Ah that’s cracking news 
Ooh, disabling the Print Spooler, I’ll have to have a look at that!
thanks, yep get it going now. Found that if I force all processes and programs to CCD1 and leave in bios CPPC to drivers, let amd and gamebar do their thing ( put msfs on CCD0 ) this will gives me the most frames. for example with the fenix on KMIA clear weather default airport runway 27 at noon , around 98 fps on ultra. only with some scenery I still have this nasty hickup looking to fast from up pedestal to lower console. but I think that’s a Asobo thing.
With frame gen?
Did you compare it to disabling the game bar and manually forcing MSFS to CCD0 with ProcessLasso? It would be interesting to see if there is a difference. I thought that it shouldn’t make a difference, just adding another layer of software, including HAGS ON and GAME MODE ON which was always not recommended, but maybe it’s more efficient to use GameBar + Game Mode + HAGS On than just the Process Lasso or .bat file affinity setting via PowerShell? I never got to really testing it with numbers. When I tried it I didn’t notice a difference, but I haven’t measure it, maybe there is a difference…
Go into your motherboard settings and change your CPPC settings to “Cache” or “prefer cache” It will run the sim on CCD0, but not park the cores. EDIT: turn off game mode too, I have hags off. No frame generation here, and wouldn’t run it anyways. I am running with 7950x3d and 3090, 64GB ram and suffer almost zero stuttering (Tlod 4.00 is almost totally smooth, might get one or two quick stutters over an hour flight, don’t notice anymore). The sim did get more demanding on CPU with AAU2, but it’s still very doable. I am flying G/A in tlod 4.00 holding 40fps most places, air or ground. I can load in Toronto with all your payware, and the fsim, and cyyz, burlington exec, samscene Toronto +++ and hold 40fps on the ground. I can hold 36fps on the ground at tldod 5.00
This is from Fsim Billy Bishop, with all those addons 
. Full tlod 9.00 and holding 30fps+ on the ground
There is some very useful info in this thread, Lots of testing to get things smooth with 7950x3d. Especially into around May/June of this year
EDIT2: I have even run FSLTL, I had very little fps loss, and was really smooth (I liked it better than Aerosoft simple traffic + Live traffic). I didn’t like that FSLTL and high tlods = my cpu running almost constant into 70C+
I am owning a 5800X3D and would like to try your CPPC trick, however in my Bios I can only choose between CPPC enabled, disabled or Auto (which is currently selected) and the option CPPC Preferred Cores (also with the options enabled, disabled or Auto).
What should I change?
1 Like
This only applies to 7900x3d, and 7950x3d, that also have non v-cached cores. Sorry
Not a good option, ASRock has a bug that at least ignores it with “prefer frequency” option. But I have to work on the same PC anyway, so I don’t want to sacrifice the fastest cores permanently. I paid for them Also, that would dump everything else on cache cores. I’d rather have everything using CCD1 and I can use PowerShell or Process Lasso to force MSFS to use CCD0. Unless proven that somehow this is not as fast or causes more stutters… I didn’t notice it does, but maybe someone can do more thorough testing. Game mode + HAGS on + core parking can also work.
That won’t cut it for VR. To maintain steady 30fps with motion projection and minimal stutters, which is the absolute minimum for smooth experience, requires around 45fps without MR, or something like 60FPS with 4K pancake mode, I think. Or thereabouts.
I have an Asrock Taichi, not prefer frequency, cache. Lemme try my VR. Been some time. I have a Reverb G2, and I could blast the tlod and full resolution through that with my 9900K. It’s not just having the tools, it’s using them properly. And I can get my 3090 holding 60fps reducing tlod a bit
I know, I meant that that part of the BIOS is glitchy anyway. I set it to “prefer driver” and then it either uses the normal AMD governor with core parking (Win11 or if I set up Wind10 partition to do that), or if I want it, can be manually forced.
1 Like
prefer Cache, that is the money shot
what board do you have, plz don’t tell me you put that glorious CPU in a budget board
But that just does the same thing as core affinity, doesn’t it? How is it different? It won’t let MSFS run on CCD1 and that’s it. It actually seems worse, because it will also throw all system processes and everything else to CCD0, which doesn’t happen with affinity. Plus, it would degrade my work on Win11 partition by not using my fastest cores. I don’t see the point, unless there’s some magic I don’t know about - which is also possible.
ASRock X670E Pro RS. Prices were outrageous for X670E boards, so I didn’t go overboard, but as long as it’s X670E chipset there’s no difference in performance AFAIK, not even with VRMs with limited overclocking of X3D.
All I can say is, this works. Check that thread. I don’t understand why (Don’t care either 
. It just does. I respect you highly, your skills are sick. Check that thread, I have another, that reach out running smooth. took some days though. But non X670E? lemme do some research what can be done. I have seen B series boards do massive OC’s on 7900x and DDr5. So not out of the loop I’m sure
1 Like
Do you have the same issue if you follow the OP’s steps to reproduce it?
Provide extra information to complete the original description of the issue:
If relevant, provide additional screenshots/video:
I have 4090 but 13900k new build and also getting worse vr screen tearing every session. Even after removing all community stuff. Windows 11. Everything latest update. Photogrammetry on or off just the same. Soooo frustrating
I couldn’t see any reference to the DX version you are using. Had similar problem myself with stutters on my RTX 3060ti. My systems always operated smoothly but the stutters crept in, I assume after one of the MSFS updates. The probem was the stutters occurred even in less dense scenery and were like yours, every 20 seconds or so. I tried all the solutions I could find that reported to fix this problem. Project lasso to change priority, HAGS on or off, live trafffic on or off, live players on or off, rolling cache on or off. A virtually endless list of setting changes, but nothing worked.
The only solution that worked for me was using DX12 instead of DX11. I have always avoided DX12 as I tried it once and performance was much worse that DX11. But on DX12 now the stutters totally disappeared, and the only downside was the loss of FPS. Have since upgraded to the RTX 4060ti and find the best result running DX12, nvidia frame generation on (HAGS on is required), using TAA. Using DLSS made the instruments to blurry even on its highest setting, so that is off.
Using these settings and a combination of Ultra and High values in MSFS I get 80+ fps in regional areas and around 60-65 fps in areas like your New York city scenario using the analogue Bonanza. But most importantly very smooth. More detailed aircraft like the FBW A320 see 55 to 60 fps over New York with no loss in smoothness.
Shortly after upgrading to the RTX 4060ti I also upgraded my computer to a i5 13600kf CPU and DDR5 memory and some m2 SSDs. That required a fresh install of Win 11. I thought that getting MSFS onto the new PC would be a hassle, but it turned out that getting my MSFS installation working again was the least painless part of the upgrade process.
So if you haven’t tried it, give DX12 a go. It was the last in a very very long list of things I tried, and only total desperation got me to even try it.
2 Likes
I tried it at some point but went back to DX11. I’ll give it another shot. Frame generation is not an option for VR but I use Motion Reprojection which is basically the same.
Stuttering problem fixed.
Similar to others, my stutters came every 5 to 15 seconds, and made the simulation unusable.
System: 11th Gen i7, 32 GB RAM, NVIDIA 4090, Valve Index
After dozens of hours changing settings and drivers, deleting shader caches, etc., I focused on hardware.
Without going into all the detail, I installed a PCIe USB card and moved my Valve Index USB Type A plug to that card. NOTHING else is plugged into the new card, just the Valve Index. I did consult my motherboard documentation to select the best PCIe slot, in order to avoid unwanted resource sharing issues.
I started MSFS and all stuttering was eliminated.
1 Like