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AMD says it's looking into gaming performance issues on Ryzen 7000

(2022/11/02)


AMD is investigating reports of "unexpected" variations in performance across the company's new Ryzen 7000 processors for certain games.

In a [1]recently published advisory , the Ryzen designer said it will work with game developers and other component vendors to iron out the issues, which revolve around some games running slower on Ryzen 7000 chips that have two core-complex dies (CCDs) versus those with one.

Twitter user CapFrameX, [2]for instance , found that the Ryzen 9 7950X could run Metro Exodus faster with one CCD disabled compared to when its two CCDs are enabled, like they are out of the box.

Ok AMD, this is serious. R9 7950X stock vs single CCD. Windows 11 22H2. Huge difference between 1 and 2 CCDs. [3]pic.twitter.com/XenZuxaknV — CapFrameX (@CapFrameX) [4]October 15, 2022

While the issues may come as a surprise to users, AMD said they are not extraordinary and explained that there are many factors, both in the hardware and software, that could be the culprit.

"Many factors affect gaming performance, including the game engine, CPU architecture, GPU selection and memory choices. As new architectures enter the market, we often observe performance anomalies which must be addressed by the component vendor or the game publisher."

[5]

AMD said it's been customary for the company to address performance anomalies as reports come in since the introduction of the Ryzen processors in 2017.

[6]

[7]

But AMD may not always agree that there is an issue.

[8]Thanks to 'resilient' American cloud plus games consoles, AMD squeezes into winter

[9]AMD's Epyc 4 will likely beat Intel Sapphire Rapids to market

[10]Because you've all stopped buying PCs, AMD's wiped $1b+ off expected sales

[11]AMD's Ryzen V3000 goes head to head with Intel's embedded chips on power, oomph

In the same advisory, the semiconductor firm said it has also seen reports of differences in performance between Windows 11 and Windows 10 for some games. Based on recent testing, the company said it has not found a "material difference" in performance between operating systems.

You may remember that AMD's Zen-based processors had [12]performance issues when Windows 11 was still fresh a year ago and that it had fixed these with a firmware update [13]earlier this year .

AMD launched the Ryzen 7000 series [14]in late August , making them the first 5nm CPUs for desktop PCs. Like previous generations, these processors use a chiplet architecture that consists of one or two CCDs, each of which come with six or eight CPU cores. This allows the new chips to pack up to 16 cores, which, in this case, would be the Ryzen 9 7950X.

[15]

While these performance issues may be considered run-of-the-mill by AMD, the company needs to do all it can to prop up its plummeting PC business, which saw revenue decline by 40 percent [16]in the third quarter in the face of a weakening market. ®

Get our [17]Tech Resources



[1] https://www.amd.com/en/support/kb/faq/pa-315

[2] https://twitter.com/CapFrameX/status/1581306086417580032

[3] https://t.co/XenZuxaknV

[4] https://twitter.com/CapFrameX/status/1581306086417580032?ref_src=twsrc%5Etfw

[5] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/systems&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2Y2L2jWJi6Ezfa0jeq9lF9AAAAEA&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0

[6] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/systems&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44Y2L2jWJi6Ezfa0jeq9lF9AAAAEA&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[7] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/systems&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33Y2L2jWJi6Ezfa0jeq9lF9AAAAEA&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0

[8] https://www.theregister.com/2022/11/02/amd_q3_2022_cloud/

[9] https://www.theregister.com/2022/11/01/amd_epyc_intel_sapphire/

[10] https://www.theregister.com/2022/10/07/amd_q3_guidance_warning/

[11] https://www.theregister.com/2022/09/28/amd_ryzen_embedded_chips/

[12] https://www.theregister.com/2021/10/07/windows_11_amd/

[13] https://www.theregister.com/2022/03/08/amd_stutter/

[14] https://www.theregister.com/2022/08/30/amd_ryzen_7000_cpu/

[15] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_onprem/systems&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44Y2L2jWJi6Ezfa0jeq9lF9AAAAEA&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[16] https://www.theregister.com/2022/11/02/amd_q3_2022_cloud/

[17] https://whitepapers.theregister.com/



AMD has become ...

Anonymous Coward

... the very thing it opposed. They're a new Intel. With Intel pricing and Intel arrogance. Definitely not the flagship-killer "CPU of the people" of the Ryzen 1000/2000/3000 days.

What a pity.

Re: AMD has become ...

Jou (Mxyzptlk)

The "CPU for the people" are 4, 6 and 8 cores. Which don't expose the issue by design. The six core 7600x seems to be the sweet spot for gaming. Everything above 8 cores is enthusiast region, or people who can actually use more than 8 cores since they [1]encode 4k, 8k or higher videos like me.

[1] https://www.joumxyzptlk.de/

Looke more like a WIntel issue AGAIN

Jou (Mxyzptlk)

The problem is moving around threads from one core to another with no regard whether they belong together or not. So if a game with four threads is split among those 2 CCDs it feels like an Intel-sponored neglet of Microsoft to deliberately make AMD CPU look bad. The OS actually knows which cores form one group. We had similar problems with Ryzen 3xxx and Ryzen 5xxx until Microsoft fixed it, but only when pressure was applied.

Thank you Intel, using dirty tricks again.

Re: Looke more like a WIntel issue AGAIN

Anonymous Coward

So if a game with four threads is split among those 2 CCDs ...

... it feels like an Intel-sponored neglet of Microsoft to deliberately make AMD CPU look bad.

How does (2) follow from (1)? i.e. how did you jump to said conclusion?

Re: Looke more like a WIntel issue AGAIN

Jou (Mxyzptlk)

It is a pattern since we had the same problem with Ryzen 3900x and Ryzen 5950x. And look how fast Microsoft moved when intel startet to mix performance and efficiency cores compared how fast they crawled to do the same for 3900x and 5950x.

You have to [1]choose ignorance to not see this. Or be paid by Intel.

[1] https://youtu.be/JODWCwycNmg?t=6

Re: Looke more like a WIntel issue AGAIN

Anonymous Coward

Possibly, but correlation doesn't indicate causation on its own. And without someone "in the know" at Microsoft explaining what delayed the response to AMD's issues compared to Intel, we may never know: there could have been a genuine technical cause behind the delay.

As much as I abhor Intel and want to see it crash in a fiery heap for its sleaziness (I'm the author of the comment about AMD becoming Intel BTW), one got to be fair.

Re: Looke more like a WIntel issue AGAIN

IGotOut

Sooo how is an AMD FIRMWARE issue fixed with an AMD BIOS update

a) A windows issue

B) anything to do with Intel.

The reason it probably took so long us when you startbfucking around wuth firmware updates, you better get things right.

But you woukd know that with your armchair experience of the chip design world.

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