Game stuttering on very fast system

[Mort]

Since upgrading my 6 computer to a very fast AMD 9950X CPU, Nvidia 4080 super GPU, 96GB of RAM and a very fast NVME disk, the game has been getting a lot of stuttering, that I was never getting on my old system.

Framerate is doing just fine, until it freezes for 0.2 seconds, then continues to run for a few seconds until it again freezes for 0.2 seconds. It happens more frequently when I'm rotating the view around.

I've tried a lot of different graphics settings, including the built in high, very high and ultra settings and it occurs more frequently in the higher settings but it still occurs in high settings too. This was never a problem on my 6 year old system, running in high settings and this problem doesn't occur in any other game I play.

I've been running a lot of performance and stability stress tests of my CPU and GPU in 3D Mark without any problems and with a very high performance score.

I am not running anything else in the background, except what is necessary to run the game.

Any idea why this is happening on a new, very high performance computer when the problem never existed on an old dusty computer?

[ThisGoesWhere]

would help if you monitored CPU usage, GPU usage, FPS, etc. in game. Are you running render scale ultra supersampling at 4K or something? Even my 4090/14900kf runs like crap at 4K with ultra supersampling. Want to say with everything maxed on ultra supersampling I saw like 25fps lol. I run max everything on native at 4K and see a really solid 90fps regardless of what happens onscreen.

If you have the Nvidia app installed for the overlay you can hit ALT+R to bring it up in the corner and see some of these details as well. You can also have it "optimize" the settings for your card in the nvidia app and see if it runs better. Sometimes my card can handle more than the app recommends but it's usually a good base point.

[Mort]

I found a workaround for the problem.

It seems the game doesn't really respond well to the many cores of the AMD Ryzen 9950X CPU. Setting the game's CPU affinity to only use the first 4 cores will resolve the problem:

* Start the game, but don't click through the initial loading videos.
* Open Windows Task manager.
* Right click the Helldivers2.exe file in the Details tab.
* Click Select affinity.
* De-select processors 4 - 31, leaving only CPUs 0-3 enabled.
* Minimize the task manager (This is crucial to avoid making the game freeze afterwards).
* Select the Helldivers 2 Window again and click Space to continue loading the game.

This prevents Helldivers from stuttering and lets me play the game on Ultra settings without any stuttering and with high framerate.

[Jonny Sparta]

Interesting solution.

For my cpu usage issues (5800x3d) I've been using Process Lasso to run hd2 with disabled smt.
Which is just an affinity change to only use the actual physical cores and not the virtual ones.

You might get some additional gains from running all your physical cores but if nothing else setting your affinity preference in process lasso if a one time operation that doesn't need to be repeated each time you launch the game.

[gerome]

Originally posted by Jonny Sparta:

Interesting solution.

For my cpu usage issues (5800x3d) I've been using Process Lasso to run hd2 with disabled smt.
Which is just an affinity change to only use the actual physical cores and not the virtual ones.

You might get some additional gains from running all your physical cores but if nothing else setting your affinity preference in process lasso if a one time operation that doesn't need to be repeated each time you launch the game.

What kind of FPS/gameplay improvements did you notice? I'm on a 5700x3d

[Jonny Sparta]

Originally posted by gerome:

Originally posted by Jonny Sparta:

For my cpu usage issues (5800x3d) I've been using Process Lasso to run hd2 with disabled smt.
.

What kind of FPS/gameplay improvements did you notice? I'm on a 5700x3d

Higher and more stable fps.

[Wornor]

9950x3d user here, same issue for HD2. Really annoying considering the CPU also runs slightly worse in monster hunter wilds compared to my old 14900k. Benchmarks online can't explain everything.
From what I've heard, turning on gaming mode in your bios fixes this aswell by disabling the non 3d vcache CCD. I haven't done this because I do work on my PC aswell and it's less than covient to be missing half my cores for literally anything else but gaming. I dont like having to do a gimmick for a game to run properly.

[Silvar]

I had same problem.

My fix was to go to Bios selecting Cache cores preferred Then go to windows power settings and selecting high performance power option (this power setting will disable AMD Core parking and CCD shutdown behavior)

Now all cores are available all the time but Cache cores are preferred and i have no stuttering issue anymore. (no need to use game mode or anything like that)