SAM also working on Zen+

Discussion in 'Frontpage news' started by teleguy, Dec 18, 2020.

  1. teleguy

    teleguy Maha Guru

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    Despite AMD's claims that Smart Access Memory is only compatible with Zen 3 cpus apparently it also works on older Zen architectures and increases performance according to tests done on the Computerbase forums.

    In Benchmarks on a Ryzen 2700X with a RX 6800 enabling the feature improved the framerate in AC Valhalla by about 15%.

    https://www.computerbase.de/2020-12...-renoir-matisse-b450/#update-2020-12-18T15:06
     
  2. Undying

    Undying Ancient Guru

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    Good news for my aging 2700X planing to keep it until ddr5. Anyway do you have to have rx6000 series gpu or can it be used with older gen?
     
  3. SpajdrEX

    SpajdrEX Ancient Guru

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    It actually could work with older cards, but difference would be really small or no existent from what I asked.
     
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  4. teleguy

    teleguy Maha Guru

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    Preliminary results say that it doesn't help much or even costs a bit of performance.
     
    Last edited: Dec 18, 2020
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  5. Undying

    Undying Ancient Guru

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    Yeah i saw that but i kinda wanted to test myself. :)
     
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  6. insp1re2600

    insp1re2600 Ancient Guru

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    How can we?
     
  7. Pinstripe

    Pinstripe Master Guru

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    Cool. Now the only question remains: Why only Ampere and RDNA2 support?
     
  8. moo100times

    moo100times Master Guru

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    I so hope this is true. Would be a shame for still relevant hardware to lose out on some of this generations additional GPU performance
     
  9. Airbud

    Airbud Ancient Guru

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    2700X is not old..."at least not to me I'm still on 2600k".....Now that's old!....little chip still works great/new solid-state drive brought it back to life....Zoom...
     
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  10. teleguy

    teleguy Maha Guru

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    You have to enable it in your BIOS and you need a driver that supports it. I don't think Nvidia has released one yet.
    If it's active the device manager should show "Large Memory Range" in your GPU properties.
     

  11. teleguy

    teleguy Maha Guru

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    Looks like support goes all the way back to at least Vega and Polaris. Maybe AMD just forgot to lock these GPUs out though.
     
  12. insp1re2600

    insp1re2600 Ancient Guru

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    Yeah, but I mean on 3900x for instance, isn't in bios for those
     
  13. teleguy

    teleguy Maha Guru

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    Depends on the BIOS.

    [​IMG]

    [​IMG]
     
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  14. Undying

    Undying Ancient Guru

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    Disabled csm and enabled 4g decoding but no resize bar on my x570 gaming x or i just cant find it. Latest f31o bios.
     
  15. insp1re2600

    insp1re2600 Ancient Guru

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    Interesting, why blur out the agesa and GPU? Lol, not that shameful is it?
     

  16. insp1re2600

    insp1re2600 Ancient Guru

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    It's not on the official f31 either
     
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  17. teleguy

    teleguy Maha Guru

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    No idea, NDA reasons maybe?
     
  18. insp1re2600

    insp1re2600 Ancient Guru

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    Doubtful
     
  19. Astyanax

    Astyanax Ancient Guru

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    [​IMG]
     
  20. insp1re2600

    insp1re2600 Ancient Guru

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    which board is this? combined with what cpu?

    edit: that screenshot is from an article with a 5000 series ryzen, so naturally resize would be shown.
     

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