I am curious about my pc performance. Also this discussion may be of interest to others. I will list my pc components and the resulting comments by the in-game cpu/gpu fps performance window. 

i7-8700K on an ASUS Prime z370-A mobo with 32 GB Corsair RAM running Win10/64 Home

drives: C: 512 GB M.2 SSD with OS only / E: 1TB M.2 SSD for general use / F: 512 GB SATA SSD for MSFS2020 only

34" ultrawide monitor 165Hz refresh rate and 1440p

GTX 1060 6GB video card and a 650w Seasonic PSU

With this setup and the simulator values set low I receive the comment 'limited by GPU'.

And now I have upgraded my pc with a Powercolor 7900XTX and a Seasonic 1300w PSU. I set the simulator values to max across the board. The comment is 'limited by main thread'. No direct mention of hardware. Does this mean the computer can't process the main thread sufficiently? The main thread itself is a problem? Oh btw I am flying over rural areas with a large city in the distance. The temps on AMD's Adrenaline show CPU at 43* and GPU at 53*. Utilization in the 60% range. 

 

 

No comments? I was wondering what response others got on their machines.

I do not have MSFS, still waiting for that sim to be finished, but if the message is that you are limited by main thread, that would indicate the CPU is now the bottleneck.

On 1/22/2023 at 1:26 PM, LCAir said:

The comment is 'limited by main thread'. No direct mention of hardware. Does this mean the computer can't process the main thread sufficiently?

As @stanssays, your CPU is now the bottleneck. This is not necessarily a bad thing, as something has to be the bottleneck no matter how good your system's hardware is.

It is only an issue if you are still not happy with your upgraded system's overall performance AND you don't want to turn any settings down that may alleviate it (like TLOD, one of the primary main thread limited culprits) AND the main thread frame time is much higher than the GPU frame time (otherwise upgrading your CPU will only yield a marginal performance improvement as the GPU will become the bottleneck once again).

On 1/22/2023 at 12:34 PM, LCAir said:

No comments? I was wondering what response others got on their machines.

As @Reset XPDR already said, you are now limited by the CPU ....
Are you happy with the performance you get? Then don't worry to much.
Not happy? A faster CPU should/could help, but don't expect 165 fps ... 😉
Even if you upgrade to a much faster CPU you proably stay limited by the main thread - thanks to your very powerful GPU.
But as alreday said, that doesn't have to be a bad thing.

I am happy with my performance. The only time I see any problem is when I hold right mouse button and look around rapidly I will see some stuttering. Maybe I can turn something down a little bit? Like this TOLD whatever that is. Its certainly not something which would cause me to throw more money at it lol.

4 hours ago, LCAir said:

Like this TOLD whatever that is.

It’s TLOD - Terrain Level Of Detail, in General graphics settings.

Basically, your cpu is not as fast as your gpu. If you are happy with your system, it is okey. But if you upgrade your cpu too then you will have better performance.