AMD: Navi Speculation, Rumours and Discussion [2019]

Discussion in 'Architecture and Products' started by Kaotik, Jan 2, 2019.

  1. Bondrewd

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    The first leaked Turing anything was a 450W (3*8pin) TU102 PCB.
    Intel&10nm saga.
    Hey, that's YT in a nutshell.
    And with Intel hiring the oldskool tech press, that's all we've got.
     
  2. ToTTenTranz

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    She said this 4 days ago during the Q1 2019 earnings conference:



    That's about the only perceivably good thing that has happened since Raja left: they don't constantly run their mouths off on how great their next chips will be, nor do they launch those super cringy videos of kids playing drums.
     
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  3. Jay

    Jay
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    Yep, things are progressing well with the new features to be out in third quarter :lol:
    This chip itself is development nightmare
     
  4. Lightman

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    One could also say that YT channel is simply running with this horror story to cover that pipe dream of Navi for under $200 and under 150W competing with Vega 64 Liquid and GTX 2070.
    Reality might be that Navi always targeted 225W as any mid range AMD GPU and slightly missed their target.
     
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  5. Bondrewd

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    Reality is that we don't know anything about it.
    Just some extra-blind guesses here and there.
    So what is it?
     
  6. no-X

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    The first "leaked" information regarding performance stated Vega 56-performance level. I would be surprised if Navi wasn't able to reach Vega 56-performace at 150 W. Radeon RX 480 had 150W TDP, Vega 56 is 55 % faster. That means 55% performace boost (compared to RX 480) at the same TDP. It shouln't be problematic. E. g. RX 470 brought 80-90% performance boost compared to HD 7870 R9 370 at similar TDP level (110W/120W).
     
    #286 no-X, May 5, 2019
    Last edited: May 5, 2019
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  7. Lightman

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    I'm not questioning that at all, just pointing towards YT speculations changing every few days to cover all the basis. One of them most likely will turn out right and youtuber will take ownership of it saying how good his sources are. We seen that happen over and over again.

    Not pointing at any specific channel here, some of them get good leaks and bad leaks and some of them just post rubbish to bring in some revenue.

    Navi should launch both in under 150W and over 150W products. I see Navi as Polaris replacement and expect similar power goals out of it.
    Performance is to be seen, looking at my Vega 7, there is a good chance that it will perform really well if not pushed too far on the clocks.
    History tells us that AMD will push for performance at the cost of power if they get a shadow of the chance to match or exceed corresponding nVidia product.
    For me it doesn't matter, I can tweak their product to my liking, for Joe average I just hope they launch more optimal solution as they did with original RX470. It was power efficient and performed really good compared to Hawaii.
     
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  8. CarstenS

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    150 Watt GPU-Power or Total Board Power? *scnr*
     
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  9. ethernity

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    I saw a whole bunch of HW bugs in the LLVM commit.
    https://github.com/llvm-mirror/llvm...939#diff-983f40a891aaf5604e5f0b955e4051d2R733

    Someone have some idea how severe they are?
     
  10. Frenetic Pony

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    Well in factual news, if ASML EUV wafer throughput per hour is ideal and is assumed to be the production bottleneck for TSMC's 7nm+ node, then running each machine could put out over 2.5 million 100mm^2 dies in a 24 hour run period. Which is good since that's probably what Ryzen 2 and a theoretical midrange Navi die size would be (thanks 7nm!).

    With TSMC apparently buying 18 EUV Twinscan machines that could mean they ramp up quickly enough to serve both AMD and Apple. Though AMD has already shipped a 7nm TSMC card so might be more comfortable with that tooling. Still, it appears to be possible that their launches this year will be 7nm+.

    Not me, but in the link I did see the confirmation of Wavefront size of 64, and same LDS bank count (32) as GCN. So that's definitely GCN still.
     
    #290 Frenetic Pony, May 7, 2019
    Last edited: May 7, 2019
  11. iamw

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    That doesn't mean much.Changing from single issue to VLIW2 does not necessarily change these parameters.
     
  12. Kaotik

    Kaotik Drunk Member
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    Zen 2 and Navi use 7N, not the 7nm+ EUV process. Same for Apples current chips
     
  13. Bondrewd

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    IIRC only Huawei is using N7+ this year.
     
  14. pharma

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    Rumor: AMD Radeon RX 3080 XT Will Challenge RTX 2070 at $339
    May 7, 2019

    https://www.extremetech.com/gaming/290919-rumor-amd-radeon-rx-3080-xt-will-challenge-rtx-2070-at-339
     
  15. Rootax

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    Challenging is a strange term for me... Like, Vega 56 is already challenging 2070 IMO, in some games, it's not that far behind. And under or at 300e in europe already. The "first" Navi rumor was like vega64 perfs +10/15% but at lower price. We'll see....
     
  16. JoeJ

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    All this sounds like RT comes to Navi 20 but not 10 yet maybe.
     
  17. del42sa

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    It sounds like wishful thinking...
     
  18. Bondrewd

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    Sounds like a simple guess, for we don't know anything about Navi.
     
  19. ToTTenTranz

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    Wishful thinking in favor of AMD that Navi 20 comes with RTRT, or wishful thinking against AMD that it doesn't come with RTRT?
     
  20. Laniakea

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    Do we know if Navi was always planned for TSMC 7N or if it was planned for GloFo 7nm - maybe due to the WSA agreement - before GloFo ditched the 7nm node?

    From what I remember GloFos 7nm node was said to be slightly ahead in comparison to TSMCs 7nm node in density and when it came to expectations regarding high clocks.

    So, assuming the info in the video is correct, if Navi was planned for GloFo 7nm and developed with the design tools/specs provided by GloFo would this be something that could affect Navi in regards to clocks and thermals?
     
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