I have a RTX 3070 GPU and am looking at two Ryzen CPU's. Firstly, the Ryzen 7 7800X3D and secondly the Ryzen 9 7950X3D. Which of these two will work best with the RTX 3070 in FS 2020?

7800X3D no questions asked for your specific use case. 7950X3D is a powerhouse CPU, who's power is actively underutilised in games, so you're paying extra power that won't at all be used. It's a CPU more suited to enterprise development. Take the 7800X3D and you'll be happy for quite a few years. It's still the king of Gaming CPUs across Intel and AMD.

What Lucky said.

 

Get some fast RAM to complement the 7800X3D (check your chosen motherboard's QVL for compatibility). The Ryzen CPUs love speedy RAM, which is rather affordable now.

Also, if your budget permits, consider a 2 TB M.2 drive. Speaking from experience, your MSFS load times will be noticeably quicker if you have lots of add-ons and you'll have space for them all.

Edited March 19, 20242 yr by F737MAX

I bought the 7950x3d because flight sims are CPU intensive and you cannot have enough CPU power.

MSFS is mainly GPU limited now because of the way threads are used (or not) in 2020. When 2024 is released, and it utilizes threads far better, the tide could change to something like the 7950x3d. More future proof imo. 

8 minutes ago, RobJC said:

More future proof imo.

the future CPUs will be more future proof.

2 hours ago, TrevorS said:

I have a RTX 3070 GPU and am looking at two Ryzen CPU's. Firstly, the Ryzen 7 7800X3D and secondly the Ryzen 9 7950X3D. Which of these two will work best with the RTX 3070 in FS 2020?

What is your current CPU?  And what screen resolution?

Edited March 19, 20242 yr by Noel

The Screen shot is from a bugged test by some youtuber , the 7950x is 4% faster then the 7800x3d if you run i the 7950 " in 7800x3d mode"

7950x3d is higer binned cpu  and the std max boost is 200mhz higher , i have both cpus run my 7950x3d in bclk mode ( async ) and use 8 cores 7800x3d mode 

the bosst is 5600mhz contra 5300 for the 7800x3d , 

If money dosent matter the 7950x3d all day long , 

7 minutes ago, westman said:

the bosst is 5600mhz contra 5300 for the 7800x3d ,

care to publish some fps and frame time benchmarks comparing the two CPUs so we might see what the 4% boils down to in the sim? I guess 0.

If you mainly use your PC for gaming, 7800X3D, otherwise 7950X3D.

9 minutes ago, turbomax said:

care to publish some fps and frame time benchmarks comparing the two CPUs so we might see what the 4% boils down to in the sim? I guess 0.

One thing I have noticed when running MSFS is that all 16 cores are pretty much running 5GHz+ most of the time. At least 12 cores are always loaded, some pushing 5.3GHz. It could be that I have road traffic maxed, boats maxed, FSLTL maxed, and everything on Ultra, but MSFS is using those 16 cores for something and it is ultra smooth at airports like LAX while doing it. And I imagine that when MSFS 2024 comes out with much better use of multithreading, a CPU like this is only going to be more valuable. But the 7800x3d is awesome too! No wrong answer imo. 

41 minutes ago, Ixoye said:

If you mainly use your PC for gaming, 7800X3D, otherwise 7950X3D.

MSFS 2020: to be or not to be a game, that is the question.

https://www.digitaltrends.com/computing/amd-ryzen-7-7800x3d-vs-ryzen-9-7950x3d/

"Zooming out, you can expect the Ryzen 7 7800X3D to perform just as well as the Ryzen 9 7950X3D. Depending on the games you play, it may skew a couple of points in either direction, but when $300 is on the table, it’s hard to argue with the performance the Ryzen 7 7800X3D is offering."

"The reason why the Ryzen 7 7800X3D is able to perform as well as the flagship comes down to the fact that it uses a single core complex (CCX). That leads to faster cache-to-cache transfers, according to AMD, helping the Ryzen 7 close the gap in gaming performance compared to the dual CCX Ryzen 9 7950X3D."

Edited March 19, 20242 yr by turbomax

with the 7950x3d you can put the all "non" msfs stuff on ccd1 ( non 3d core )

20 minutes ago, pilotter said:

with the 7950x3d you can put the all "non" msfs stuff on ccd1 ( non 3d core )

I don't care on which core all that "non" msfs stuff is as long it doesn't perform better. let's see the fps benchmark, anything else is just pure theory. clock speed, cache size and core count is not everything and misleading to only compare those. why can the 7800X3D otherwise outperform the 7950x3D in many games? as AMD has stated:

"  7800X3D uses a single core complex (CCX). That leads to faster cache-to-cache transfers, according to AMD, helping the Ryzen 7 close the gap in gaming performance compared to the dual CCX Ryzen 9 7950X3D."

Edited March 19, 20242 yr by turbomax

3 hours ago, F737MAX said:

What Lucky said.

 

Get some fast RAM to complement the 7800X3D (check your chosen motherboard's QVL for compatibility). The Ryzen CPUs love speedy RAM, which is rather affordable now.

Also, if your budget permits, consider a 2 TB M.2 drive. Speaking from experience, your MSFS load times will be noticeably quicker if you have lots of add-ons and you'll have space for them all.

With very good 4TB Nvme drives selling every day under $230, I would not settle for a 2TB drive for to be the main drive.