SK hynix Announces HBM3 DRAM Development

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Oct 20, 2021.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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    SK hynix Inc. announced that it has become the first in the industry to successfully develop the High Bandwidth Memory 3, the world's best-performing DRAM. HBM3, the fourth generation of the HBM tech...

    SK hynix Announces HBM3 DRAM Development
     
  2. Stairmand

    Stairmand Master Guru

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    HBM has such high promises, but sadly it's just too expensive.
     
  3. schmidtbag

    schmidtbag Ancient Guru

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    So, does this imply they'll be on DIMMs?

    Also, with upcoming servers having DDR5 and 12 memory channels, how much more bandwidth is really necessary to justify the cost of HBM3? Keep in mind too Samsung will be releasing 512GB modules for DDR5, so HBM3 capping at 24GB seems rather... unimpressive for a server.


    HBM to me makes a whole lot more sense for APUs, where there aren't many memory channels and you don't need TB of memory, but there is a desperate need for more bandwidth.
     
  4. Crazy Joe

    Crazy Joe Active Member

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    HBM3 is probably aimed at the high end GPU market and not intended as a RAM type for general purpose RAM. If I'm not mistaken the 24GB cap is per stack and most solutions that would use HBM3 will use multiple stacks.

    For instance the A100 cards we use here have 5 stacks of 8GB HBM2 RAM (technically 6, but one is disabled for yield reasons) for a total of 40GB. There is now a variant of the A100 that uses 16 GB stacks of HBM2E memory for a total of 80 GB.

    So future high end GPU's might deploy with 5 stacks of 24 GB HBM3 memory or 120 GB of VRAM!
     

  5. schmidtbag

    schmidtbag Ancient Guru

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    Yeah I suppose you're right. Re-reading the article, I'm not sure where I was getting the impression that I thought this was just going to be for desktop CPUs. But yeah for GPUs, this could be great.
     
  6. Venix

    Venix Ancient Guru

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    @Crazy Joe i agree on an apu hbm will be insanely good .... The problem is that it is to expensive to say stick a chip to 5600g for the price range of the cpu , witch is a shame :(
     

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