Nvidia Volta Speculation Thread

Discussion in 'Architecture and Products' started by DSC, Mar 19, 2013.

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  1. 3dilettante

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    There's only so many choices for an MCM. In this case, there's 4 chips on a substrate and only so many things that can be done to hook them up.
    In this case, AMD's EPYC slide is actually misleading. Nvidia's concept has a mesh or ring on-package, whereas Naples is described as being fully-connected within a socket.
    Nvidia's package signalling appears to be 4x as power-efficient as AMD's and with much higher bandwidth.

    The AMD HPC concept differs in that it relies heavily on active interposers and includes CPU chiplets. It's not clear if how heavily Nvidia relies on an interposer, whether silicon or organic. It does not appear to be active, at any rate.
    The less aggressive integration and more defined power and process numbers may also point at Nvidia's scheme being nearer-term, as in the next generation or the one after.

    AMD's timeline and architectural basis is unclear, and might be post-Navi--which itself comes after a Vega refresh.
     
  2. sonen

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    GPU Base, Boost, Typical and Peak clocks, what’s the difference?

    For Pascal architecture boost clock is an underestimated frequency because chances are, you will never see such clock in games. The GPU Boost 3.0 introduced a new term called ‘theoretical max clock’ (you can find it on the slides). This clock is not part of the official specs, it exists because the actual clock speed will almost always be higher than official boost clock for Pascal cards. It’s also higher compared to cards based Maxwell architecture, which makes things slightly more confusing.


    [​IMG]
     
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  3. A1xLLcqAgt0qc2RyMz0y

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    I'm really not sure where to post this but since the direct competition to Intel Knights Mill is the Nvidia Volta I will try here.

    I came across this on the HPC Wire site:

    This is the first I have heard about the Aurora contract possibly being canceled. Searching about the Intel Aurora contract via Google does not show any of the above "delayed, rewritten or potentially canceled".

    In the linked article it is interesting that Intel has chosen to split their HPC part:

     
  4. Samwell

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    Yes, it's probably postponed, first time i read about it was in may or something like that:

    https://www.nextplatform.com/2017/06/15/american-hpc-vendors-get-government-boost-exascale-rd/

    Aurora should've come with Knights Hill, but the problem is Knight's Hill might be too weak in DL, whereas it seems Knight's Mill can't do Double Precision so good. But the DoE probably wants a system which is good in both, so either it will become a Knight's Hill, Lake Crest Hybrid system or they wait till the integration of Lake Crest into Knight's Crest.
     
  5. Geeforcer

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  6. Freemantle

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    Working 815mm2 V100 silicon in the hands of researchers already, nice!

    Bodes well for upcoming consumer oriented GV104 and GV102 parts.
     
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  7. homerdog

    homerdog donator of the year
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    But I got this one card here that has low clockspeeds in one game. :grin:

    I had a GTX670 and now a 970 and they both ran/run well above their rated boost clocks in every case I tested. You know what this means? Absolutely nothing! It only matters if you look at a large enough sample size, and if we do that we find that NV cards almost always match or exceed their official boost frequencies in actual games - not to mention their base clocks. It has been this way since NVIDIA implemented Boost clocks as far as I can tell.

    I even think it would be fair for NV to market the boost clock as the cards' typical minimum clockspeed with a note saying "it's possible for the card to go under this frequency in certain rare conditions". Kinda like AMD does, except it wouldn't be bullshit.
     
  8. pharma

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    NVIDIA Volta V100 GPU Based Tesla V100 PCI Express Specifications
    http://wccftech.com/nvidia-volta-tesla-v100-ai-research/
     
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  9. Kaotik

    Kaotik Drunk Member
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    Erm, everything was already known in June when NVIDIA announced the PCIe version, and for whatever reason they really screwed up with that text there - they talk about full GV100 specs and Tesla V100 PCIe clocks and FLOPS. Tesla V100, both SXM2- and PCIe-versions, use GV100 with 80 SMs enabled, not all 84. At least their table got it right, though.
     
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  10. rcf

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    "Deep Learning Teraflops" or "DLOPs"?
    WTF...
     
  11. Kaotik

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    It's referring to Tensor-core FLOPS not really usable outside deep learning stuff apparently
     
  12. xpea

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    From yesterday's conference call transcript:
    finally JHH about Volta for gaming:
    I know as a fact that Geforce Volta samples are already working at Nvidia for few weeks. So it looks like that they want to maximize Pascal profit (because they feel no thread from Vega)
     
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  13. seahawk

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    Sounds very much like a launch early 2018 - probably February to May.
     
  14. CarstenS

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    Sounds like Volta is not on the cheap side to produce yet:
    „And so the price of Volta is driven by the fact that, of course, the manufacturing cost is quite extraordinary. These are expensive things to go and design. The manufacturing cost itself, you guys can estimate it, is probably in the several hundred dollars to close to $1,000. “
    (earnings call 02/18, Q&A)

    And sadly, CEO-math at work again. :(
    „The answer to your first question is yes. Volta was a giant leap. It's got 120 teraflops. Another way to think about that is eight of them in one node is essentially one petaflops, which puts it among the top 20 fastest supercomputers on the planet. And the entire world's top 500 supercomputers are only 700 petaflops. “
    Not only does he confuse FP16/FP32 and FP64 like AMD did, he throws in Tensor-OPs that are everything but general FLOPS into the mix.
     
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  15. Leier

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    Although I would love have a Volta card - of course NVIDIA feels no pressure. So I guess we will have to wait till Q2/18. Sadly.

    But at the same time I think the new architecture will be mind-blowing. And I like having a matured product.
     
  16. Rootax

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    Since Tensor won't be in a gaming card, what are the differences between Pascal and Volta except core count and clock speed ?
     
  17. entity279

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    From his "unbeatable Pascal" remark ( almost an understatement, I have to admit ) I also read that Volta doesn't convincingly beat it, even in a GeForce incarnation.

    (I do realize of course that it is in JHS's interest to suggest that, as it may convince people not to wait and buy now, even more so with current prices)
     
  18. Leier

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    NVIDIA is claming a 50% Effiency Advantage in FP32 performance for Volta over Pascal. Gaming-Volta will directly benefit from this.

    And why shouldn't be there more changes for gaming cards in volta?

    For NVIDIA we have to differenciate between "HPC" and "Gaming" chips since Pascal. We have a general architecture ("Pascal" or "Volta") which are used in HPC chips ("GP100" or "GV100"), but also in gaming Chips ("GP102" etc. or "GV102" etc.). And this general architecture is modifed for the current use in this chip.
     
  19. CarstenS

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    Poor Volta?
     
  20. McHuj

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    Perhaps they're also waiting for GDDR6 availability which is supposed to ship in volume early next year. Even a GV104 chip maybe bandwidth starved with GDDR5x if it only has a 256-bit bus like GP104.
     
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