AMD VEGA Die-shot

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Jun 6, 2017.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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    Well, GPU shot reallt. Check it out, I checked with AMD if this is a real photo and not a fakes one. It is the real thing though. The VEGA shot shows a thing or two, you can count the 8 blocks that go...

    AMD VEGA Die-shot
     
  2. Hapatingjaky

    Hapatingjaky Active Member

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  3. JamesSneed

    JamesSneed Maha Guru

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  4. Fox2232

    Fox2232 Ancient Guru

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    HBM2 dimensions: 11.87 * 7.75 mm
    That taken converted to pixels and reverse pixeling of GPU die makes it 25.17 * 19.57 mm.
    So ~493mm^2 ... Comparing to Fiji ~596mm^2 ... Hmm, Kind of Big.

    With Ryzen AMD puts 4.8B transistors into ares of ~195mm^2. That could place Vega around 12.1B transistors. That's good 36% more than Fiji.

    Where are they? What are those things I do not see on image? Even IMC should save transistors due to using 2*HBM2 instead of 4*HBM1.

    Or did AMD decided to use "dead die" and has "empty space" (just matter not actual transistors) in between certain parts to reduce current leakage, improve cooling and achievable frequency?
     

  5. PrMinisterGR

    PrMinisterGR Ancient Guru

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    This seems to happen with Threadripper.
     
  6. Valken

    Valken Ancient Guru

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    Curious how does DEAD DIE work in terms of an insulator? It acts like an internal heatsink passing thermal waste / energy out to lid then to the heat sinks for dissipation?
     
  7. Anarion

    Anarion Ancient Guru

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    Eh? Threadripper is just two Zeppelins on same package. I.e. two Ryzen chips. Vega is nothing like that.
     
  8. PrMinisterGR

    PrMinisterGR Ancient Guru

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    I agree, I just replied as to where AMD seems to be literally using empty space. Vega is a die in itself, so we really have no idea where AMD has dark silicone.
     

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