B2 stepping of Ryzen 5000 CPUs Spotted

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Oct 9, 2021.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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  2. kcajjones

    kcajjones Active Member

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    I wonder if these might overclock better?
     
  3. SSD_PRO

    SSD_PRO Member Guru

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    That God hopefully they are finally fixed.
     
  4. Octopuss

    Octopuss Master Guru

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    Fixed what?
     

  5. RED.Misfit

    RED.Misfit Active Member

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    Fixed for volume production ! :D
     
  6. tunejunky

    tunejunky Ancient Guru

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    LOL
    they've been in volume production from the jump. they're only the #1 cpu for enthusiasts (by sales) and in some regions the #1 cpu(s) overall
     
  7. Silva

    Silva Ancient Guru

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    Temperatures? I don't know...
    Hopefully the yield is better and prices come a bit down?
    Intel new CPUs must be near too.
     
  8. TheDeeGee

    TheDeeGee Ancient Guru

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    Temps won't go down unless it has two active CCDs.
     
  9. Gomez Addams

    Gomez Addams Master Guru

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    That is not how steppings are noted. That is a revision number and the two are not the same. Steppings refer specifically to the lithography masks. Revisions are changes to any step in the fabrication process and there are usually more than a hundred steps involved. Here is a screenshot from CPU-Z that shows how the two appear :

    [​IMG]

    As you can see, the revision of that chip was B0 so the new one is two versions later.
     
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  10. Astyanax

    Astyanax Ancient Guru

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    with Ryzen, simply changing the IO Die without any change to the Chiplets can trigger a revision bump.
     
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  11. RED.Misfit

    RED.Misfit Active Member

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    Yeah but mostly in DIY market, they still have to overthrown Intel in the OEM. I guess that B2 stepping is a small step to help.
     
  12. schmidtbag

    schmidtbag Ancient Guru

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    Yield seems fine. I'm already seeing the 5800X on sale for $370. Still more than I'm willing to spend but that's a hefty price decrease from MSRP.
     
  13. user1

    user1 Ancient Guru

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    Last edited: Oct 10, 2021
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  14. JonasBeckman

    JonasBeckman Ancient Guru

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    Hardware bug fixes would be neat with less workarounds in bios or the chipset driver but yeah the cache CPU's was what I was thinking of too, thought there was a earlier stepping too but maybe the integrated GPU models didn't see any changes like that when those were released.

    Not sure if the stepping had to be updated for the cache or not either, newer has to be better though something being fixed or whatever.
    Unlike hardware revisions were components are stripped out changed to be cheaper. :p
     
  15. user1

    user1 Ancient Guru

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    my thinking has the b2 stepping being the v-cache capable die ,minus the vcache, would make sense if they are going to use the same production lines as the current chips.
     
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  16. Venix

    Venix Ancient Guru

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    Isn't it common practice for cpus to have more steppings on their production lifetime ? What is strange exactly here ?
     
  17. Netherwind

    Netherwind Ancient Guru

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    Considering the 12900K is rumored to cost more than 800€ I'd say 370€ for a 5800X is a good deal looking at price/perf.
     
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  18. user1

    user1 Ancient Guru

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    so far amd hasn't bumped the stepping for any of their zen cpus for a given product generation, (with maybe the technical exception of the 1600af, though it may not count since its on a different process node ). It's the first time in a while that we will see a product of the same name receive a newer stepping.
     
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  19. Venix

    Venix Ancient Guru

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    Huh.. i am wrong then ! All these years i thought it is almost standard to improve yields and what not.
     
  20. user1

    user1 Ancient Guru

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    They do improve yields but that generally doesn't result in a newer stepping, steppings are usually changes to fix bugs or make improvements to the design.
    intel/amd used to release alot of steppings with penryn we got c0 c1 e0 all within a pretty short period of time all of which were retail chips, intel was also a little loose with their steppings too, they would make pretty significant changes, most notably the E0 stepping of penryn actually adds a new instruction and changes the cache timings allowing them to clock much higher.

    nowadays most cpus will be lucky to see a couple steppings hit retail,

    for reference here is a the revsion guide for old athlon xp chips https://www.amd.com/system/files/TechDocs/25759.pdf there are 13 different steppings! , then we look at 10h (phenom) and there are 12!, bulldozer https://www.amd.com/system/files/TechDocs/48063_15h_Mod_00h-0Fh_Rev_Guide.pdf there are only 2 publicly released steppings, zen 2 only has 1 retail stepping https://developer.amd.com/wp-content/resources/56323-PUB_0.78.pdf , admittedly some of the older ones include engineering samples, but still they're definitely not releasing new steppings into the wild the way they used too.

    probably for the best tbh, means cpus are less buggy in general.
     
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