Low FPS: Ryzen 3900x, 32 GB 3600Mhz RAM, RTX 3080FE

User Support Hub Hardware & Peripherals
1

Hey everyone, I have been playing MSFS and I’ve been getting very low fps (dropping to as low as 15FPS when standing still at an airport like Reno). My system specs are as follows:

CPU: Ryzen 3900x
RAM: 32GB 3600Mhz with XMPP turned on
GPU: Nvidia RTX 3080
Monitor: 3440x1440 HDR 10 enabled

My game settings are set to Ultra with Traffic all sliders at 50.

All my drivers are up to date and Windows is also up to date.

When looking at FPS in developer mode, it always says Limited by Main Thread in Red.

2

Thats just how it runs at the moment. Try turning down Terrain LOD and Object LOD.

3

So you are CPU limited. You’ve no option but to change settings to reduce CPU load. For me, AI traffic is the big one. I run a mix of ultra and medium and get 40-45 FPS most of the time. The lowest I’ve seen is 25 and that is with a lot of cloud in a big city. That is on an Intel 7700k, 32GB RAM, 2070 Super card. No overclocking. If I remember I’ll try the airport you mentioned after work.

If I were you I’d also make sure nothing else in the system is stealing CPU. I’ve had that before but if what you is consistent then it probably isn’t to do with that.

4

Also, make sure your windows power profile is set to either performance or Ryzen balanced. For whatever reason, sometimes windows updates reset the power profile to energy saving and you end up with your CPU only running at around 1.6 GHz.

5

You didn’t say which actual airport so I tried the international one. I got 35 to 45 FPS on the ground and it stayed pegged around 35 - 36 FPS taxiing then flying around the airport and city. Most of my settings are only on high but a few are on ultra.

1 Like
6

How do you change the power profile to high performance?

7

Windows Settings -> Power and Sleep -> Additional Power Settings

8

Okay I’m on additional power settings but I don’t see any option to change it to high performance

9

This is what you should be seeing

power
power808×423 79.1 KB

If not you may need to check that your chipset drivers are installed correctly.

10

Okay I found it. I only have “High performance” and not “ultimate high performance”

Changing it to high performance will give me what?

11

It depends on what setting you were already at. From Balanced to High performance won’t show any noticeable impact for gaming, but from Power saver to High performance you should see drastic improvement. Just for example, on my Ryzen 2600 going from Power saver to High performance changes my clock speed from 1.6 GHz to 3.66GHz.

12

Try to deactivate the following in your BIOS in the CPU settings.

SMT Mode --> Hyperthreading

This worked fine for me and increased the FPS round about 5-10.
CPU load is now at ~40-60%, before ~10-20%

13

okay never mind then. It was already set at “Balanced” i guess changing to high performance, i won’t see any difference.

14

Any high temperatures?

15

Nope, no overclocking etc…

16

Will it take the micro-stutters away?

17

Not completely, but it’s way smoother than before

18

Don’t renovate you can spend hours, build new… New Windows 10 install with all updates driver etc and only install MSFS first… and try it with standard profiles first… Then u see that it was usually something in your system software that was slowing you down :blue_heart:

19

Deactivate or disable?

image
image3024×2693 646 KB

20

Disable. Depending on which Mainboard Manufacturer…