SK Hynix 8GHz 3D stackable GDDR5 memory

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Nov 18, 2014.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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    Hynix started shipping its 3D stackable HBM (High-Bandwidth Memory) GDDR5 memory, stacked means more memory cells per IC. The chips have a capacity of 4Gb and are clocked at 8 Gbps. According to some,...

    SK Hynix 8GHz 3D stackable GDDR5 memory
     
  2. icedman

    icedman Maha Guru

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    Im very excited to see what AMD brings to the table this time around. Would like to see this used as edram for the apus one day too would kick a$$ if they could stick 1 4gb chip merged in the die.
     
  3. jimdove

    jimdove Master Guru

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    does this mean this time next year the new GPUs will come with hideous amounts of Vram?
     
  4. ricardonuno1980

    ricardonuno1980 Banned

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    I'm very interested 3D VRAM GDDR5 with HBM!! :D But... I'm congrats to AMD-ATi. :) 4096-bit bus!?!! :eek2: :D
    GTX 980/970 have the bit too low bandwidth memory because currently NVIDIA hasn't said 3D VRAM! :confused: :thumbdown
     
    Last edited: Nov 18, 2014

  5. Lane

    Lane Ancient Guru

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  6. fantaskarsef

    fantaskarsef Ancient Guru

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    I'm curious: 4096bit BUS, does it mean internal bus, as in G-RAM to GPU, or does it mean this thing could service a 4096bit BUS over PCIe?
    I'd want to know how that works out in regard of PCIe lanes, maybe this card will be the first to really gain something above 8 lanes PCIe 3.0 ( =16 lanes PCIe 2.0).
    Anybody got a clue or guess?
     
  7. Ukdude21

    Ukdude21 Member

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    Presumably Nvidia will not benefit from this technology any time soon as Amd partnered with Hynix. When Nvidia develops any form of advancement for their GPU's they do not share the technology with Amd and I think Amd should let Nvidia suffer the same now.
    If amd holds the exclusive for this technology it will leave Nvidia playing Catch up for a while.
     
  8. Denial

    Denial Ancient Guru

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    PASCAL is already slated to use 3D stacked RAM. So yeah.
     
  9. -Tj-

    -Tj- Ancient Guru

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    Its a 3d stack thing, each 1gb stack has 1024bit bus x4 = 4096bit bus and 4gb vram, also each stack has 128gb/s bandwidth x4 = ~512gb/s+
     
  10. fantaskarsef

    fantaskarsef Ancient Guru

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    If those 512 gb/s mean gigabit/second, that should be less than e.g. a single PCIe 3.0 lane with over 7 terrabits/s? Or am I making a fool off myself? :bonk:
     

  11. -Tj-

    -Tj- Ancient Guru

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    No it is Gigabytes/s ;)

    In one leak it said up to 640gb/s
     
  12. fantaskarsef

    fantaskarsef Ancient Guru

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    Wow, that still beats 15+ GB/s (PCIe 3.0 x16, if wikipedia is right).
     
  13. Ukdude21

    Ukdude21 Member

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    All I am going to say...

    All I am going to say is read number 7 on the list of this website. "http://streamcomputing.eu/blog/2014-08-05/7-things-nvidia-doesnt-want-know/"
     
  14. Noisiv

    Noisiv Ancient Guru

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    7 things NVIDIA doesn’t want you to know

    2. Profit per GPU is huge


    Nice.
    Truly a cuckoo blog :)
     
  15. Ukdude21

    Ukdude21 Member

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    Yeah obviously a cuckoo blog lol... not!

    For a moment there I thought I had a reply from Denial after reading number 7 on the blog I posted but guess not lol
     

  16. Noisiv

    Noisiv Ancient Guru

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    shhh... Profit per GPU is huge... don't ask don't tell
    https://www.youtube.com/watch?v=KuZBqicI-I8
     
  17. Ukdude21

    Ukdude21 Member

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  18. siriq

    siriq Master Guru

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    Nvidia will see it earlier than you think. http://www.anandtech.com/show/8727/nvidia-ibm-supercomputers
     
  19. Denial

    Denial Ancient Guru

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    What does number 7 on the blog you posted have anything to do with what I said about 3D stacked ram? You mean number 6?

    This blog is garbage. His first point is wrong, he even admits he's wrong. The rest are obvious "per profit GPU is huge" geewiz, who would have thought that a company who spends the majority of it's revenue on R&D is going to have huge profit margins on it's products. AMD & Hynix created 3D stacked memory? Really? 3D packaging has been around for at least a decade, it was outlined in my digital signals class at RIT in 2007. Samsung already produces 3D DD4 modules. Yeah maybe both companies worked together to finalize the HBM standard. But wtf does that have to do with Nvidia? Should everytime AMD/Nvidia use OpenCL they mention Apple as they were one the the biggest contributors?

    And even point 7 is wrong and dumb and the author is an idiot. They outlined virtual unified address space in 2011.

    http://on-demand.gputechconf.com/gtc-express/2011/presentations/cuda_webinars_GPUDirect_uva.pdf

    God forbid they left out a word in a slide and he cried a river about it.

    Like look I hate propriety tech as much as anyone else. I also hate Nvidia's marketing department. That being said advocating for AMD to do exactly what Nvidia is not only hypocritical but its' a bull**** way to produce a standard.
     
    Last edited: Nov 18, 2014
  20. Ukdude21

    Ukdude21 Member

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    Wow calm down... what a lengthy reply -.- Insulting the author of that blog is not necessary. Yes you are right on certain things e.g. I do hate propriety tech and I hate how NVidia operates in terms of marketing. How will NVidia learn? if they have access to all or any tech Amd develops which you have a refuted about 3d stack memory... Up until now NVidia would not of wanted any tech that Amd specifically had anything to do with.
    Sometimes the best medicine is your own and that is why I was advocating Amd to practice the same methods as Nvidia.
    It is obvious though that Amd has been collaborating very closely with Hynix in regards to developing this tech.
    Hugh profits hurts the consumer wallet I think that is why that is mentioned...
    Sorry your right point 6 on that blog... I wonder what 3d stacked memory will be used by NVidia? Hynix I honestly don't know but I am interested.
     

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