AMD ryzen DOES not support high freq DDR4

Discussion in 'Processors and motherboards AMD' started by JustinBulty, Feb 16, 2017.

  1. JustinBulty

    JustinBulty Member

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    some bad news
    unlike z170& Z270, amd ryzen does not support high speed ddr4 memory kits.
    best OC mainboards will be limited to 3200MhZ.:bang:
     
    Last edited: Feb 16, 2017
  2. Öhr

    Öhr Master Guru

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    Source? And if it were true, would it make much of a difference? 3.2GHz is still twice that of my current ddr3 ram
     
  3. -Tj-

    -Tj- Ancient Guru

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    3.2GHz is still ~45GB/s and that's more then enough, heck even anything over 32GB/s is.

    [​IMG]

    If it was bottlenecked you would see it by those leaked highly multi threaded tests, and it wasn't :)

    Sometimes 1800X almost goes head to head with 10core intel and its quad channel ~70GB/s.
     
    Last edited: Feb 16, 2017
  4. Bentez

    Bentez Maha Guru

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    Funny how that graph has The G.Skill Trident Z 3200 out performing the Ripjaws V 3200, even though they are the same speed but the ripjaws have slightly tighter timings.. wonder why that is. Wonder if its the RGB Trident Z sticks rather than the standard?
     

  5. thatguy91

    thatguy91 Ancient Guru

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    This article sounds a bit like anti-Zen. Even Kaby Lake really doesn't do well above 3200. It maybe can run it, but the benefit really isn't there.
     
  6. Mufflore

    Mufflore Ancient Guru

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    There are a few games where high speed DDR4 can help.
    ie Fallout 4 scales well with memory speed and timings.
    But in general it gives no benefit.

    Different cpu arch, possibly different results.
    Unfortunate Zen doesnt give the option tho.
     
    Last edited: Feb 17, 2017
  7. JustinBulty

    JustinBulty Member

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    i have access to some ryzen stuff but under precision NDA.
     
  8. JustinBulty

    JustinBulty Member

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  9. thatguy91

    thatguy91 Ancient Guru

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    That really doesn't mean anything as is.

    Excerpt from the Asus Prime Z720-A support page. This is pretty much standard across Z270 boards in the way it is listed:

    As I bolded, technically Kaby Lake and the Z270 only support 2133 MHz RAM, the rest is overclocked. If you saw just 2133 MHz for specs on these boards, you would assume Z270 and Kaby only supports 2133 MHz RAM. Technically speaking it only supports 2133 MHz in way since the the rest are overclocked speeds.

    You could argue the 2933 MHz on that image is the non-overclocked maximum support speed, like Intel's 2133 MHz, seeing as it is the only one listed.
     
    Last edited: Feb 17, 2017
  10. vase

    vase Ancient Guru

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    The reason is different kit sizes of the same BW (-> module sizes) can vary in timings.
    And CL +/- 2 is a big thing...
     

  11. JustinBulty

    JustinBulty Member

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    even worse!
    biostar start listing X370 mobos and according to official specs they only support at max 2667 MhZ!
     
  12. JustinBulty

    JustinBulty Member

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    im completely aware of this but this is not what im talking about!
     
  13. grndzro7

    grndzro7 Member

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    You could at least try to be objective. You can OC the FSB to increase the ram speed. It's always been that way. It isn't bad news.
     
  14. JustinBulty

    JustinBulty Member

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    actually im hardware reviewer!
     
  15. fantaskarsef

    fantaskarsef Ancient Guru

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    This time around I have to side with Ryzen on this one, first make extreme high frequency DDR4 a requirement (it yet isn't, 3200MHz is more than fast enough for every day use), then complain about it missing. I'm not even sure most people run DDR4 at all currently. I've tried running my RAM at 2133MHz even and honestly, it practically makes no difference for gaming as far as I have noticed in the games I played.
     

  16. JustinBulty

    JustinBulty Member

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  17. JustinBulty

    JustinBulty Member

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  18. JustinBulty

    JustinBulty Member

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    AthlonTM AM4 !
    am4 only support win 10-64 bit
     
  19. airbud7

    airbud7 Ancient Guru

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    It would be a millisecond quicker...:bang:

    What shall I do with all that time?.....:D
     
  20. Loophole35

    Loophole35 Ancient Guru

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    They have already said ryzen will support Windows 7, 8 and 8.1.
     

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