9950X3D vs 9800X3D in DCS World?

[Winger]

anyone got to compare yet?:)

[Hiob]

I would bet a fortune that there are no important performance differences.
Keep in mind that only one CCD (8 cores) has access to the V-cache anyway.

The additional CCD and cores only help with some productive appliances.

 

The benchmarks that are release yet only show an advantage for the 9950 in 1080p here and there but only very very slim.

[Winger]

thought so. doesnt make sense as long as DCS doesnt support more than the cores that a 9800 X3D has

That is if you already own a 9800X3D like i do

[Mr_sukebe]

The benchmarks I saw yesterday showed the 9950x3d not having any real benefit within gaming.

That "might" be slightly different within DCS, not with DCS running on the primary CCD, but with the number of other background Apps that some of us use (e.g. Simshaker, Discord, SRS etc).

[LucShep]

1 hour ago, Mr_sukebe said:

The benchmarks I saw yesterday showed the 9950x3d not having any real benefit within gaming.

That "might" be slightly different within DCS, not with DCS running on the primary CCD, but with the number of other background Apps that some of us use (e.g. Simshaker, Discord, SRS etc).

Yeah, that is a good remark.

The advantage of a CPU like that could be that you can alocate every "non-gaming" application to the "non-X3D" CCD, freeing the CCD with the 3D V-cache just for DCS.

A bit like you can do with Intel CPUs with E-Cores, freeing the P-Cores for DCS.
 

Edited March 13 by LucShep

[Hiob]

56 minutes ago, LucShep said:

Yeah, that is a good remark.

The advantage of a CPU like that could be that you can alocate every "non-gaming" application to the "non-X3D" CCD, freeing the CCD with the 3D V-cache just for DCS.

A bit like you can do with Intel CPUs with E-Cores, freeing the P-Cores for DCS.
 

In theory yes. But realistically all of those tasks mentioned together won't even remotely put a single core to its limits. Eight cores still is plenty for DCS. All background apps included.
The latency penalty for having two CCDs is real though. (even if minuscule).

I wouldn't mind using either of those CPUs for DCS. And I would probably opt for the 9950X if I was to build a new system from scratch. But upgrading from 9800 to 9950? No. 
Also no, if budget considerations are to make.

[matze140]

I recently build my new rig with the 9950X3D on a X870 Board.

In the DCS log, 6 of the 8 CCD0 cores are allocated to Render. 2 of them are on the common Threads.

Vise versa 2 of the non 3D V-Cache cores allocated to the rendering. 
So in total

Render    {0,1,2,3,4,5,8,9}
Common {6,7,10,11,12,13,14,15}

is this a problem or does the core prioritization work as indented? 

 

[Hiob]

Allocation is not the same as actual usage. If you really want to know which cores are breaking sweat and which are whistling la paloma, you need to refer to a proper monitoring software.

[skywalker22]

Is it recommended to have Gaming Mode enabled on 9800X3D? I read few months ago that's not. Not sure if thats the case any longer with new Bios.

MSI's words on 9800X3D:

https://www.msi.com/blog/msi-x3d-gaming-mode-enhance-gaming-performance-on-amd-ryzen-processors

[ismaeljorda]

 

[hotstick]

This video is extremely important!

I have a question about FPS. Despite the much lower latency of the 9950x3D, the FPS in games are identical!
Do you have any idea why?

[D3Magic]

13 hours ago, hotstick said:

This video is extremely important!

I have a question about FPS. Despite the much lower latency of the 9950x3D, the FPS in games are identical!
Do you have any idea why?

I think he was also recording video using 9800X3D, which might have affected the latency. I wish he had compared to 9800X3D pure gaming.

[hotstick]

On 3/18/2025 at 1:28 PM, matze140 said:

I recently build my new rig with the 9950X3D on a X870 Board.

In the DCS log, 6 of the 8 CCD0 cores are allocated to Render. 2 of them are on the common Threads.

Vise versa 2 of the non 3D V-Cache cores allocated to the rendering. 
So in total

Render    {0,1,2,3,4,5,8,9}
Common {6,7,10,11,12,13,14,15}

is this a problem or does the core prioritization work as indented? 

 

Could you make your DCS log file available?
I'll compare it to the 9800X3D log from a core allocation perspective.

Thanks.

[Dragzor]

9950x3d should act in-game as an 8core coz of the cache in it. Thats how amd and microsoft go about it. Whenever u unfocus ur game, it should go back to 32cores/normal behavior.

 

On 3/18/2025 at 2:01 PM, skywalker22 said:

Is it recommended to have Gaming Mode enabled on 9800X3D? I read few months ago that's not. Not sure if thats the case any longer with new Bios.

MSI's words on 9800X3D:

https://www.msi.com/blog/msi-x3d-gaming-mode-enhance-gaming-performance-on-amd-ryzen-processors

I believe its strictly msi thing, there no such option in other manufacturers. My guess its one click do multiple stuff thing, like unlocking more power, increasing temp limit, minor overclock/undervolt, which usually do the same as curve optimizer -20, -30 if its stable. Its more common among multiple MB brand, as its reducing voltage=cooler=better clocks.

[skywalker22]

How do you find the multithreading working in DCS? This is how all 8 cores (and 16 threads, for OS means 16 cores) work atm while flying in DCS.

For me it looks like all the work do 3 cores, 3 more for some 50% work, and all the rest 10 are more or less idling.

Edited April 15 by skywalker22

[pegasus1]

On 4/13/2025 at 1:00 PM, skywalker22 said:

How do you find the multithreading working in DCS? This is how all 16 cores work atm while flying in DCS.

For me it looks like all the work do 3 cores, 3 more for some 50% work, and all the rest 10 are more or less idling.

Ive finally got around to installing the new AM5 parts ive had for a month, had to fabricate some new case panels as i swapped out a few of the WCing components.

9950X3D, Corsair Vengeance  96GB 6600MHz CL32, ASUS ROG Strix X870E-E Gaming WiFi, Gen 5 2TB (OS + Data), Gen 4 4TB (Steam), Gen 4 2TB (DCS).

Ref above, ive not had a chance to fly DCS other than a basic mission to stress test but how much did you have going on in the background, im wondering if the number of cores in play is effected by activity in the game. Il load it up tonight ans set maybe 100 air and ground units and see how it impacts core and RAM usage, i have over 40gb RAM being used on my 64gb 5800x3d rig.