Intel Xe Architecture for dGPUs

Discussion in 'Architecture and Products' started by DavidGraham, Dec 12, 2018.

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  1. Leovinus

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    So it was, I was being forgetful.
     
  2. tinokun

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  3. Leovinus

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    I'd never put much weight on performance numbers on SiSoft leaks.
    Also I have no clue why, but for whatever reason no matter how many times Intel has said Xe is in fact 3 microarchitectures, almost every site judging the whole architecture based on Xe-LP chip that (almost certainly) won't be used in any discrete desktop format and is different from Xe-HP which will cover most of the markets.
     
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  5. Rootax

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    It's the same architecture, no ?

    https://www.pcgamesn.com/intel/xe-microarchitecture-lp-hp-hpc?amp

    "It’s all technically the same GPU architecture, but Intel intends on divvying up the functionality and features across the entire product stack."
     
  6. Frenetic Pony

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    There's 3 "versions" of the architecture each aimed at differing markets, and it's not clear right now exactly what that means.
     
  7. Leovinus

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    Yea I still haven't wrapped my head around it. Is Arctic Sounds still around in some form? Is there an expected convergence of design parts between Gen11 and Arctic Sound? Rumours around a clean sheet design to come shortly in the Xe saga by Rajas hand alone from AdoredTV... It's an interesting dumpster fire of rumours and tech confusion.

    What jumped out at me was the power draw, which seems insanely high for a modern part of modest performance. Now obviously this is pre-production silicon (one hopes) and might be rough around the edges... but it's on a new process node and derived from a low power consumption Gen11 part. A 1050 ti draws around 70-75 watts maximum, a 14nm Pascal part.
     
  8. Rootax

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    new process node ? The dev kit version are using 10nm/7nm ? I believe it was still 14nm+++
     
  9. Kaotik

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    Arctic Sound is the official code name for Xe-HP-cards (as seen in the leaked datacenter group slides), not sure if it covers Xe-LP or Xe-HPC in any form

    As for the SiSoft leak, there's several different things which raise some eyebrows, which more likely means SiSoft reading things wrong than anything else.
    The driver name, something which you probably can't read wrong, suggests integrated graphics. This is supported by the DDR4 memory etc.
    The rest of it says "960 SPs" and "120 CUs" which do and don't match up. 960 SPs would be 120 "CU's" (EUs) if Xe still has 8 pipes per EU, that matches up.
    However, we already know that integrated and Xe-LP are 96 EUs, not 120, and none of the Xe-HPs is expected to be 120 EUs either, but 128, 256 and 512 EUs (which may or may not be comparable to Xe-LP EUs, we don't know yet) for 1, 2 and 4 Tile GPUs
     
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