7800x3d performing worse than 7600x? Please help

[[CPT]Utah_]

I am hoping for some help in getting my performance back to where I want it. I recently upgraded my CPU from a Ryzen 7600X to a 7800X3D. However my FPS has been worse and I don't understand why as the 7800X3D is a better processor.

 

Here is my other specs:

MSI B650P MB

32GB ddr5 6000 RAM

AMD RX 6800XT GPU

Quest 3 VR headset (using link cable)

 

The only thing that changed was the CPU. Before the swap I had my headset running at 90 FPS with 1.1x scaling in the oculus app. I also set the FOV multiplier to 0.78 and was using process lasso to isolate the game on certain cores with high priority. This worked great.

 

I didn't change anything except the CPU and I got rid of process lasso as I read it doesn't help with a 7800x3d. But now my frame rates are usually worse, especially on Combat Box. Instead of staying at 90 it consistently dips to 45 which makes it a much worse experience. I tried installing process lasso again, and did a similar setup to what I had with my old CPU but it made everything much worse. So I undid that.

 

I can really use some help as I don't know why I am getting worse performance with a better processor! I just spent money on it and am disappointed with the results. Thanks.

[1PL-Husar-1Esk]

CPU temperatures are fine? I have mine undervolt and thanks to this CPU is boosting for longer time when necessary.

[[CPT]Utah_]

Yes my temps have been fine, I do have the CPU slightly under-volted, all cores at -15

[DBCOOPER011]

IL2 runs predominately on two cores. I recommend running a quick CPU-Z bench to see where its at. A single thread score of around 700 or so is normal for the 7800X3D. I hit the below with a negative 30 curve optimizer setting.

 

 

[[CPT]Utah_]

2 hours ago, DBCOOPER011 said:

IL2 runs predominately on two cores. I recommend running a quick CPU-Z bench to see where its at. A single thread score of around 700 or so is normal for the 7800X3D. I hit the below with a negative 30 curve optimizer setting.

 

 

Thanks for the idea, I'll try it out and report back

[[CPT]Utah_]

After further research I did a clean install of Windows 11 (I didn't when I originally installed the CPU) and got all the latest chipset drivers. After doing all this I ran the CPU-Z bench, same as yours and got the following. I am a little behind (probably because of my higher curve optimizer settings) but this is close enough that it wouldn't be much of a performance hit right?

 

I will have to see how my game performs now once I get it reinstalled.

 

Edited December 27, 2024 by [CPT]Utah_

[DBCOOPER011]

2 hours ago, [CPT]Utah_ said:

After further research I did a clean install of Windows 11 (I didn't when I originally installed the CPU) and got all the latest chipset drivers. After doing all this I ran the CPU-Z bench, same as yours and got the following. I am a little behind (probably because of my higher curve optimizer settings) but this is close enough that it wouldn't be much of a performance hit right?

 

I will have to see how my game performs now once I get it reinstalled.

 

 

Yes, I assume you should be good now. Atleast for anything regarding the CPU, I would think..

[[CPT]Crunch]

Try following these tips, can't treat it like an Intel.  Also there was a huge AMD fix for windows not long ago, make sure your patched up at the board level.

 

https://www.techpowerup.com/download/amd-ryzen-chipset-drivers/

[[CPT]Utah_]

Thanks CPT Crunch, I did make sure I got the latest chip set drivers, we will see how performance is now.

[LLv34_Flanker]

S!

 

There have been topics on MSI Afterburner causing issues with X3D processors, like fps dips etc. I never run any other programs in the background while gaming, more harm than benefit mostly. Of course OpenTrack for tracker and SRS, but never any other.

 

My 7800X3D/6950XT combo runs DCS at an average over 200fps on 3440x1440, curve optimizer at -20. This in multiplayer. You should also check for latest BIOS as there are newer AGESA versions out now improving things.

[1PL-Husar-1Esk]

I'm using MSI Afterburner with x3d without issues. I do GPU undervolt with it.

I recommend using drive easy app to check if all is up to date.

Applying all latency lowering tweaks also give me more response system and smooth gameplay.

Edited December 30, 2024 by 1PL-Husar-1Esk

[[CPT]Utah_]

Thanks everyone for the input. I just wrapped up a 45 minute session on Combat Box with over 40 players on. My frame rates were consistent at 90 so it looks like the windows reinstall with latest BIOS/chipset drivers did the trick.

[354thFG_Drewm3i-VR]

2 hours ago, [CPT]Utah_ said:

Thanks everyone for the input. I just wrapped up a 45 minute session on Combat Box with over 40 players on. My frame rates were consistent at 90 so it looks like the windows reinstall with latest BIOS/chipset drivers did the trick.

I would add that I would still recommend using process Lasso for some things like priorities, power, and turning off hyper threading for IL-2. 

[[CPT]Utah_]

19 hours ago, 356thFS_Drewm3i-VR said:

I would add that I would still recommend using process Lasso for some things like priorities, power, and turning off hyper threading for IL-2. 

I've never heard of turning off hyper threading for IL2 before. Can you explain what the benefit is please?

[354thFG_Drewm3i-VR]

6 hours ago, [CPT]Utah_ said:

I've never heard of turning off hyper threading for IL2 before. Can you explain what the benefit is please?

Yes, hyperthreaded cores are virtual and not physical as you probably know. In fact, HT/SMT actually splits one core into two, but can't actually--due to physical limitations--do twice as much work. They (HT/SMT cores) therefore are less potent, use more power and thus cause a physical core (when split in two) to generate more heat, and simply are less effective at doing calculations for a single (or dual) threaded application. They do however, help a lot with background OS tasks which they can run easily. It is not like you will see many more frames, but instead that you will see more stable performance and less frame drops/latency (partially due to less heat so you can run higher clocks and draw less power) with Process Lasso turning off SMT/HT.

 

So use Process Lasso for a bit of a performance and stability boost by setting priorities, power plans, and turning off HT/SMT only for IL-2.

 

I started using it a while back and have never looked back. I find CPU performance much better than it was before in VR, but I also have an i9-13950 HX (and had a 5800X3D before).

[[CPT]Utah_]

14 hours ago, 356thFS_Drewm3i-VR said:

Yes, hyperthreaded cores are virtual and not physical as you probably know. In fact, HT/SMT actually splits one core into two, but can't actually--due to physical limitations--do twice as much work. They (HT/SMT cores) therefore are less potent, use more power and thus cause a physical core (when split in two) to generate more heat, and simply are less effective at doing calculations for a single (or dual) threaded application. They do however, help a lot with background OS tasks which they can run easily. It is not like you will see many more frames, but instead that you will see more stable performance and less frame drops/latency (partially due to less heat so you can run higher clocks and draw less power) with Process Lasso turning off SMT/HT.

 

So use Process Lasso for a bit of a performance and stability boost by setting priorities, power plans, and turning off HT/SMT only for IL-2.

 

I started using it a while back and have never looked back. I find CPU performance much better than it was before in VR, but I also have an i9-13950 HX (and had a 5800X3D before).

Thanks for the info, that makes sense, I will see how it goes.

[354thFG_Drewm3i-VR]

On 1/2/2025 at 10:02 AM, [CPT]Utah_ said:

Thanks for the info, that makes sense, I will see how it goes.

Sounds good.

 

Keep in mind that something like Razer Game Booster also helps a bit by shutting off background processes and freeing up ram. Lots of little tricks that help a bit...