AMD Confirms HBA High Memory Bandwith for Graphics Cards

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, May 7, 2015.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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  2. Atombender

    Atombender Ancient Guru

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    That looks very promising.
    Increased x86 investments, I wonder why they would want to invest in x86-architecture instead of x64 :confused:
     
  3. Reddoguk

    Reddoguk Ancient Guru

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    Looking at those pictures then i'd have one slight worry about this stacked vram.

    Getting off future HSF's might be a total nightmare, if the Vram is actually quite a bit higher than the GPU then i can see many a broken GFX card. You might in fact just twist it off with the heatsink :)
     
  4. Fox2232

    Fox2232 Ancient Guru

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    schema
     

  5. Robbo9999

    Robbo9999 Ancient Guru

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    Yeah, I agree, I thought something similar when I saw the diagram of the HBM stacked memory being higher than the GPU core yet being right next to it. To me this would mean that heatsinks will have to be specifically designed to sit flat on the GPU core, and then have a step down to allow the HBM to fit. I think this would be a difficult design to manufacture accurately, and I think we will see inefficiencies with cooling due to heatsinks not mating to the surfaces properly, as well as the increased likelihood of damage being caused to the structure of the HBM when the heatsink is being placed & also when removed.

    On a side note with HBM, it's just allowing larger bandwidths and throughputs, but AMD will need to manufacture an efficient core in order to take advantage of that extra bandwidth otherwise it's pointless.
     
  6. geogan

    geogan Master Guru

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    Waiting for BF5 + DX12 + R395X. That should be a nice step forward.
     
  7. fantaskarsef

    fantaskarsef Ancient Guru

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    So those are your plans for late 2016? :D
     
  8. intellimoo

    intellimoo Master Guru

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    Looks good, but no PhysX! :j/k:
     
  9. ruiner13

    ruiner13 Member Guru

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    What percentage of the cards power usage comes from memory vs. the GPU in, say, the 290? Will this shave a few watts or more than that?

    I wonder how many layers they will have stacked, too. And are the memory and GPU cores fabricated at the process size. I'm assuming the RAM is fabricated elsewhere then fused with the GPU die, or else AMD is also getting into memory fabrication...
     
  10. fantaskarsef

    fantaskarsef Ancient Guru

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    If I recall correctly, it will have 4 layers at the start, but can go up to 8 layers with HBM gen 1. Might change later. Also, I wonder when they will start to think of putting two or more of those blocks onto a PCB :rolleyes:
     

  11. darkshadow5k5

    darkshadow5k5 Master Guru

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    x86 is x64.
    x86-32 is what is referred to when people say 32bit
    x86-64 is what is referred to when people say x64
     

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