AMD Ryzen 9 9950X3D

[igormp]

And why should I trust this video??
There are thousands of other videos where Dota 2 has more FPS and looks better on Windows with DirectX.

I don't trust the user "igormp"

Why should I trust the videos you sent?
There are thousands of other videos where Dota 2 has more FPS and looks better on Linux with Vulkan.
I don't trust the user "Epaminombas"

I must say that I do enjoy your trolling attempts with some random linux hate while you don't even discuss the CPUs at hand lol

 

[Denver]

Why did this topic take this Linux vs Windows war turn? The arguments also look like this;

 

[Daven]

@dgianstefani :
Page 25: "Please note that the cores without 3D V-Cache are clocked a bit lower than the cores without cache."

You have such an intimating profile picture that I had to laugh at your proofreading comment. Death likes its grammar grammatical. Lol!

 

[Wirko]

@W1zzard - An idea (involving more work of course): could you make another set of 3 graphs of clock frequency vs. thread count with the OC settings you described below?

 

[leonavis]

Why did this topic take this Linux vs Windows war turn? The arguments also look like this;

View attachment 389070

Aliens, yes. The best argument for the existence of intelligent life in outer space is the fact that most of the universe moves away from us faster than light. xD

 

[Dr. Dro]

Why did this topic take this Linux vs Windows war turn? The arguments also look like this;

View attachment 389070

I'll take the blame, since I brought up that the R9 X3D CPUs tend to perform better under Linux, as corroborated by the phoronix review. They are MUCH faster under Linux than they are under Windows. Same applies to the 7000X3D series, by the way. They're still great on Windows but you'll get the best out of it on an OS that can actually schedule and issue instructions to the correct physical resources on the processor. This problem is particularly egregious on the 7900X3D and 9900X3D, because they only have 6 cores on each side. Regardless of 6 or 8 core CCDs, without something equivalent to Intel's "thread director", it's about impossible for these to behave perfectly under Windows and as a result they will always trail benchmarks, with the higher end model just about getting a pass because most apps will run perfectly on 8 cores, but not all will on 6.

 

[Epaminombas]

Aliens, yes. The best argument for the existence of intelligent life in outer space is the fact that most of the universe moves away from us faster than light. xD

Did you know that alien ships use a Linux-based system and that's why they're faster?

 

[leonavis]

Did you know that alien ships use a Linux-based system and that's why they're faster?

Pfft. Everybody knows Aliens use Unix. Some are rumored to have adopted HURD, but I find that highly speculative.

 

[Makaveli]

I'll take the blame, since I brought up that the R9 X3D CPUs tend to perform better under Linux, as corroborated by the phoronix review. They are MUCH faster under Linux than they are under Windows. Same applies to the 7000X3D series, by the way. They're still great on Windows but you'll get the best out of it on an OS that can actually schedule and issue instructions to the correct physical resources on the processor. This problem is particularly egregious on the 7900X3D and 9900X3D, because they only have 6 cores on each side. Regardless of 6 or 8 core CCDs, without something equivalent to Intel's "thread director", it's about impossible for these to behave perfectly under Windows and as a result they will always trail benchmarks, with the higher end model just about getting a pass because most apps will run perfectly on 8 cores, but not all will on 6.

i've avoided these dual CCD's chips because of this.

I will move up in core count when we see Zen 6 and 12 cores on a single CCD.

 

[mkppo]

And why should I trust this video??
There are thousands of other videos where Dota 2 has more FPS and looks better on Windows with DirectX.

I don't trust the user "igormp"

There are some games that are faster on Linux especially after Zen 5. Linux has come a long, long way from the early 2010s when I tried tinkering with it.

I want to move away from Windows in my daily and honestly, pretty close now. Maybe in another 3-4 years..

 

[Niceumemu]

Amusing how AMD hasn't sent any 9900X3D chips out to any reviewers - goes to show that even AMD is aware you need to be stupid to buy that SKU.

Still think the 9950X3D isn't a good buy except in very specific cases - if you can actually benefit from the additional cores over the 9800X3D then you're better off having 2 PCs, one with a 9800X3D and another with a 9950X or a threadripper part. If two PCs doesn't make financial sense then a 9950X3D also doesn't IMO.

 

[Guwapo77]

I'm grabbing this mofo first thing in the morning! If that 5090 is still there...I might scoop that too (still can't wrap my mind around $3,330 GPU...so I'm going to let it sit in the store overnight)


Update: Thank goodness both of those Asus 5090s are gone, no temptation.

 

[freeagent]

i've avoided these dual CCD's chips because of this.

They run fine.. nothing special here just a stock windows install.

 

[Solaris17]

Man this thing is nice!

 

[A Computer Guy]

They run fine.. nothing special here just a stock windows install.

View attachment 389109

Similar to your results I've noticed when gaming on my 5950x Windows tends to use the first CCD for gaming and usually little to no activity on the 2nd CCD.

 

[MCJAxolotl7]

The manufacturer creates the drivers; Windows does not have full control over how software wants to use CPUs for this purpose.

Baixar o Kit de Driver do Windows (WDK) - Windows drivers

Instruções para o download da versão mais recente do Kit de Driver do Windows (WDK)

learn.microsoft.com

This WDK Kit is used by manufacturers to create drivers and test and approve them in quality tests. People think that Microsoft is the one who creates the drivers.

You can create software and force it to use specific cores, bypassing what the AMD driver initially wants to do.

What Microsoft does is improve hardware compatibility in the latest Windows 11 BUILD released.

Windows 11 24H2 has improvements for new CPUs and GPUs.

Previous versions do not.

And there are a lot of people buying new hardware from 2024/2025 and installing outdated Windows 10 or an old Windows 11 version that is not compatible. Then these people come to the forum to complain about poor performance.

Yes'nt, windows DOES have scheduler stuff, GNU/Linux has always imho had better cache scheduling, especially for 3D-V cache
Also, Dual/Multi CCD cache would rock on threadripper or even epyc
Edit: GNU/Linux, somehow i make the mistake as I type it on the OS itself

 

[tpa-pr]

The AMD driver on Linux is so well-polished that it often outperforms Windows, even when MS OS benefits from running games natively. I never imagined this would happen

Windows vs Linux gaming using a 7900 XTX | CachyOS | Nobara 40 | linux performance | 9800x3D - YouTube

Linux Gaming Nvidia Vs AMD In 17 Games | 7900 XTX | 4080 Super | OpenSUSE Tumbleweed | GPU Benchmark

Trying not to take us off topic too much, but gaming on Linux is great. The thing is it's a double-edged sword:
1) It can take a little more to set up compared to Windows.
2) You have way more flexibility than Windows does.

To give a general example: the majority of games on Linux run under Proton (which for the layman is essentially a cut-down Windows environment in a box, sorta, bear with me). Say you have a game that is running fine on Proton version 9.04. Then Proton version 9.05 comes out and your game breaks. Well no worries, you can just download 9.04 separately and tell your game "only ever use this version of Proton". Suddenly your game is now isolated in it's own little consistent environment where it just works forever! And Proton is only usually 1-2GB of storage, compared to having to go through the effort of rolling back to a previous version of Windows or pausing updates or what-have-you. And this is putting aside the custom versions of Proton with game-specific fixes or that add new features and so on.

When Proton runs it creates a virtual Windows disk (called a prefix) that the game is then installed to and/or runs from, like so:

Now say you're tinkering with your prefix and you accidentally corrupt it, just like you might break a Windows install. In Windows you would need to, well, reinstall Windows right? With Proton you just delete that prefix (but make sure to back up your save games first), run your game and Proton generates a fresh new one for you, just like that And best of all is it doesn't affect other prefixes or your base Linux install!

Couple that with the AMDGPU driver being just there in the kernel and so performant, it can be worth the extra time and effort to explore swapping to Linux for gaming. Give it a couple of years for the NVK/NOVA drivers to become finished and I'd even recommend it for Nvidia users too. Nvidia users CAN run Linux at the moment but it's more effort again and can require a bit of upkeep because of the way the current driver works.

 

[Dr. Dro]

Amusing how AMD hasn't sent any 9900X3D chips out to any reviewers - goes to show that even AMD is aware you need to be stupid to buy that SKU.

Still think the 9950X3D isn't a good buy except in very specific cases - if you can actually benefit from the additional cores over the 9800X3D then you're better off having 2 PCs, one with a 9800X3D and another with a 9950X or a threadripper part. If two PCs doesn't make financial sense then a 9950X3D also doesn't IMO.

At the prices asked, it's a total upsell. That's the CPU that'll go to the bargain bin for below 9800X3D prices down the road, just as it happened to the 7900X3D... because it won't push the frame rates gamers want, and it won't pull its productivity weight for the creator camp. It's a CPU that no one wants, and AMD is releasing likely for binning reasons.

 

[igormp]

Nvidia users CAN run Linux at the moment but it's more effort again and can require a bit of upkeep because of the way the current driver works.

IMO it's not any harder than the experience on Windows, just install the driver and that's it. Nvidia even defaults to their open source kernel modules nowadays.

 

[tpa-pr]

IMO it's not any harder than the experience on Windows, just install the driver and that's it. Nvidia even defaults to their open source kernel modules nowadays.

Even better, I haven't owned an Nvidia card for years so i'm out of the loop. Thanks!

 

[Dr. Dro]

Similar to your results I've noticed when gaming on my 5950x Windows tends to use the first CCD for gaming and usually little to no activity on the 2nd CCD.

The chiplet architecture Ryzen and EPYC utilize is particular to locality, if you can comport a workload's full demand onto a single CCD and avoid sending data through the infinity fabric or accessing data on cache that is currently residing in an adjacent tile (worst-case scenario), this is what you should do. Of course, that means only the resources locally available to that node are fully exploited. This is essentially why the X3D chips have some degree of trouble on Windows, the OS just sees it as "one big block of available resources" without any regard for their physical location. CCD1 should only be accessed if more resources than CCD0 can provide are requested by the application.

That's why a 8 threaded workload will run better on a 5800X or 5950X as opposed to a 5900X CPU, even though the latter has 12 cores and technically should comport 12 threads just fine. It's because it's 6+6, not 8+0 or 8+8. Zen 3 also did away with the issue that Zen 2 had with the CCXs by making them the same size as the CCD itself, the 3900X was effectively a 3+3+3+3 setup and 3950X 4+4+4+4.

AMD's Turin: 5th Gen EPYC Launched

5 Gigahertz Server CPUs

chipsandcheese.com

Scroll down a little on this article, there is a huge chart demonstrating both inter-core, inter-CCD and inter-socket access latencies on a Turin system. As you can see, though, there are both memory bandwidth and access latency implications, the same concept also applies to the Ryzen 9's obviously at a much, much smaller scale.

 

[95Viper]

Stay on topic.
Stop thread crapping and trolling.

 

[QUANTUMPHYSICS]

I'm still going with the 285K in my next desktop. Along with my 5090FE and 64GB DDR5, I'll be good for the next 8 years.

 

[Niceumemu]

At the prices asked, it's a total upsell. That's the CPU that'll go to the bargain bin for below 9800X3D prices down the road, just as it happened to the 7900X3D... because it won't push the frame rates gamers want, and it won't pull its productivity weight for the creator camp. It's a CPU that no one wants, and AMD is releasing likely for binning reasons.

Yup, I just don't get why they do a 9900x3d instead of doing a 9600x3d, have a nice budget gaming CPU they can dump the defective dies into

 

[Outback Bronze]

Great CPU AMD. Well done!!

They are really enforcing their domination atm and congrats to them from where they used to be. It's been a hard slog. They deserve it.