SK Hynix to have Superfast DDR5 memory on its roadmap

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Apr 2, 2020.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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  2. Undying

    Undying Ancient Guru

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    8400mhz DDR5? Damn, that is fast.
     
  3. asturur

    asturur Master Guru

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    That will likely be later, initially we will get the slower one i suppose.
    Any word on latency? usually that goes up in cycle count.
     
  4. JamesSneed

    JamesSneed Master Guru

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    ooh that on die ECC. That may be a game changer and really when we are talking 64+ GB of memory if you want stability ECC is needed.
     

  5. schmidtbag

    schmidtbag Ancient Guru

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    Maybe now iGPUs won't be bottlenecked by memory bandwidth.


    Maybe.
     
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  6. Reddoguk

    Reddoguk Ancient Guru

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    Who's DDR4 is running @ 1.2v? Most DDR4 is running overclocked enthusiast profile running @ 1.350v.

    So maybe DDR5 will have the same but from 1.1v - 1.2v or something.
     
  7. Dazz

    Dazz Master Guru

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    It will sure promote much more powerful iGPU's and 128GB Ram in a dual channel system is sure nice but we all know when DDR5 comes out it's gonna be very very expensive, which is why AMD is going to be behind Intel on that.

    Still getting (8400MT/s) 134GB/sec vs present (3200MT/s) 51GB/sec or best case Ice Lake (4266MT/sec 68GB/sec) is impressive from a dual channel system. Would sure be impressive if they were triple channel as it would give integrated graphics as much bandwidth as a RX5500XT.

    I want to know what crappy latencies there are all new RAM has latencies stupidly high.

    True but JDEC spec is 1.2v
     
  8. Aura89

    Aura89 Ancient Guru

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    It'll be better but it's still nowhere near GDDR ram speeds to my knowledge.

    DDR5 i believe officially "supports" up to 51.2GB/s speed
    GDDR6 i believe officially "supports" up to 768GB/s speed

    No amount of "going beyond specs" for DDR5 will make up that gap lol
     
  9. Carfax

    Carfax Ancient Guru

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    DDR5 is going to be a game changer, especially for high core count CPUs.
     
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  10. icedman

    icedman Master Guru

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    This all looks very ambitious and i like it if it holds true, also this will be nice for APU's they're very capable once u throw in higher bandwidth memory.
     

  11. Ricepudding

    Ricepudding Master Guru

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    Sadly, it would be a very odd combo to pair an CPU and insanely fast ram, specially if we are talking about the 7000mhz + ram, which i assume is what you're talking about. Least price when it first comes out, think ram has settled a bit, but i assume the top end ram will be rather expensive. Having a look at my site 16gb of 4600 ram is looking about 480 whilst 2400 ram is about 70-80. Would still make more sense to get a gpu with that 400 pounds.

    We have 4000mhz ram now, has anyone done tests with Zen or intels Igpu on that? Though it would be interesting to know if we would ever get a console kind of APU since we are reaching these high mhz on standard ram now.

    Edit seen anandtech did a test, from 2133 to 3466, most titles seem to hit a limit around 2800-3333mhz sadly they didnt go higher but assume it wouldnt keep going up much since it seems to scale less and less. One big issue, long with ram prices is often a good motherboard is needed to hit the high mhz, most cheap boards dont allow for it or cant to it. adding more expense.

    If this was at least a fight for console level APU's like in the xbox one x could see something nice, but at their current level its a total waste of money, and unless they change they can get 16000mhz ram in them and still be too limited
     
  12. sykozis

    sykozis Ancient Guru

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    XBox One and PS4 both use AMD's Jaguar architecture. It's the same architecture that was used for the AM1 Athlon and Sempron processors.... Also, XBox One and PS4 technically don't use an APU. They use an SoC....
     
  13. ToxicTaZ

    ToxicTaZ Active Member

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    DDR5 starts with new sockets from both Sides from AMD and Intel will have new platforms.

    AMD AM5 is PCIe 5.0 with DDR5

    Intel LGA 1700 socket PCIe 5.0 with DDR5

    Moving from my now 4133MHz DDR4 to 8400MHz DDR5 will double my future performance... Plus 64GB stick sizes will be able to have 256GB RAM dual channel support.... Just need 5nm for DDR5 to bring down the price.
     
  14. Ricepudding

    Ricepudding Master Guru

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    Should i rephrase and say it would be nice if we could get an APU similar to a console SoC but in APU format, would that be better? and yes technically its the same architecture, but we aren't getting that level of performance at all which is partly a shame. And partly most likely too many limitations, unless some OEM wants to strap gddr5 to the motherboard but never seen them do that.
     
  15. reix2x

    reix2x Master Guru

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    Yay ECC even on consumer? That is great!
     
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  16. ATi Lazarus

    ATi Lazarus New Member

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    I do wonder how much longer off chip memory has in the laptop and desktop segment.

    Surely the ultimate aim is a desktop APU with 32GB HBM3 stacked system memory. I know this sounds crazy but that would be your CPU (16 Zen 4 Cores on 5nm = $800), your GPU (120CU RDNA 3.0 on 5nm) $1000) and your replace your system RAM ($300) = $2100, would that APU cost that much more than that?

    With 5nm densities and efficiencies plus Zen 4 power efficiencies plus RDNA 3.0 being 50% more power efficient than RDNA 2.0 which is 50% more efficient than RDNA 1.0, I think this is all doable and saleable too, so you could have half those specs for half the price.

    Maybe 5nm for all this is optimistic and we need to wait for 3nm but I would say this is where we are heading.
     
  17. DeskStar

    DeskStar Master Guru

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    GIMME..... GIMME....... GIMME........!!.!.

    Maybe now after DDR5 memory will it be a bottleneck any more.

    Then again storage is still holding us truly back. Unless you go with some raided m.2's then you're still not as fast as today's memory's capabilities.

    Can't imagine the day when the whole "system" is able to move data throughout at speeds of 90+ GB/s
     
  18. Shadowdane

    Shadowdane Maha Guru

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    I bet I'll be waiting a while to get something that would be a significant bandwidth increase over my DDR4-4000 Cas 17-17-17-37 kit I currently have with my i9-9900K.
    DDR4-4000 @ Cas 17 has a latency of 8.5ns with 64GB/sec bandwidth.


    I think I'll be waiting for DDR5-8000 @ Cas 33 which would have a latency of 8.25ns and 128GB/sec bandwidth. Or at least something close to that! Every ram upgrade I've done I've always tried to lower latency slightly. Or I'd have to get Cas 34 which would be the same 8.5ns latency.

    It is weird to see Cas latency that high but as clock frequencies go up the latency will continue to get higher and higher! And I'm sure the first DDR5-8000 kits will have be nowhere close to that low latency. I'm guessing they will probably start around Cas 40?
     
  19. nizzen

    nizzen Maha Guru

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    Test memorylatency with Aida64 :)
    Under 40ns is good with 9900k. Under 35ns is Very good. 60ns is with stock slow xmp memory @ ~3000
     
  20. craycray

    craycray Active Member

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    I don't think it is running at 8400MHz. You see the big thing about DDR5 is that it is doubling data units per transfer over DDR4. So, it can run at half the frequency for the same amount of bandwidth. So 8400Mbps DDR5, is possibly running at same frequency as 4200Mbps DDR4 would run at, but transfer twice as much.

    EDIT: updated to explain better
     
    Last edited: Apr 3, 2020
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