AMD Radeon RDNA2 Navi (RX 6500, 6600, 6700, 6800, 6900 XT)

Discussion in 'Architecture and Products' started by BRiT, Oct 28, 2020.

  1. dskneo

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  2. Digidi

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    I think i found a programming failure in MacOs 10 for Navi 21 :D It is correct in MacOs 11. So we can say Navi 21 has indeed 8 rasterizer :D

    [​IMG]
     
    #382 Digidi, Oct 30, 2020
    Last edited: Oct 30, 2020
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  3. 3dilettante

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    I would look to the num_sc_per_sh as a possible indicator of the number of rasterizers, assuming sc stands for scan converter. Packers would be related to primitive order pixel shading, and having more might allow for more independent sections to be tracked in parallel.
     
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  4. trinibwoy

    trinibwoy Meh
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    Some major swings back and forth depending on the title. It’ll be interesting to see if and how numbers change based on different settings choices by independent reviewers. E.g. AMD chose to disable AA on SotTR.
     
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  5. Digidi

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    I did read my post above your one :D But thank you for the information.

    Can sombody tell me how i put in a redit link without showing the reddit windows in the post? I need only the link as source. Thank you.
     
    #385 Digidi, Oct 30, 2020
    Last edited: Oct 30, 2020
  6. You could wrap the reddit link in quotes
     
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  7. pjbliverpool

    pjbliverpool B3D Scallywag
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    I'm actually more impressed with that than the slides shown during their presentation. Kudos to AMD for providing that. If the independent reviews hold up then I'll be very seriously tempted to get a 6800XT.
     
  8. Silent_Buddha

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    One thing I have to say. If independent reviewer benchmarks bear out AMD's claims WRT to RDNA 1, then RDNA 2 is a phenomenally impressive accomplishment for AMD regardless of how it compares to NV.

    NV's accomplishment with Ampere compared to Turing is pretty impressive, but this goes beyond that WRT being a IHV centric generation to generation improvement if RDNA 2 ends up being well over twice as fast as RDNA 1.

    For AMD (formerly ATI). as a generation to generation uplift? I don't know if it rivals R300 versus R200, but it's pretty damned impressive none-the-less.

    Regards,
    SB
     
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  9. The RV670 -> RV770 jump also comes to mind.
    But on both of these cases there were considerable jumps in performance while using the same node, which is pretty impressive.

    RDNA3 in late 2021 using 5nm seems very promising too, at this point.
     
  10. Scott_Arm

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    I agree. RDNA2 is looking really impressive. If they follow the trends they've set with Ryzen, RDNA3 is something I'm really looking forward to. Lisa Su is earning that compensation package she's getting in terms of where the company has positioned under her leadership.
     
  11. xEx

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    Those graph shows the 6800 beating the 3090 at 1440p...
     
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  12. SimBy

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    Temper your expectations. Forza 4 and BF5 run great on AMD hardware and Ampere scales slightly worse at lower res.
     
  13. Erinyes

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    RDNA2 is certainly looking like AMD's Maxwell and while RV770 did significantly increase performance, AFAIK the power efficiency did not increase as much.

    There's no certainty that RDNA3 is on 5nm, AMD's conspicuous use of "advanced node" instead of an explicit mention of 5nm as they do with Zen 4 leads me to believe it could be on 6nm. And the roadmap showing RDNA 1,2 and 3 extends till the end of 2022 so it might well be a 2022 product as well.
     
  14. Rootax

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    It's really a nice touch from AMD.

    Now if reviews are showing that RT is working with all DXR titles and with decent perfs...
     
  15. SimBy

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    Didn't David Wang promise yearly cadence? Also wth is N31 entry in MacOS? It's obviously not something RDNA3 based.
     
  16. eastmen

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    process drop navi 2 next year , navi 3 in 2022 makes sense to me
     
  17. Kaotik

    Kaotik Drunk Member
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    or RDNA3 is the process drop
     
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  18. Nemo

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    What about rumors about the existence of other versions of Navi21 with HBM2? The memory bandwidth level for tandem from HBM2 and Infinity Cache is very interesting. Maybe this option will appear in Apple Mac Pro systems.
     
  19. xEx

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    I am. There's no way I believe that in some games the 6800 will give me higher FPS than a 3090 until I see it in reviews. But if it's true...then damn AMD really deliver here.

    Is there an announcement on when the NDA will finish?
     
  20. Scott_Arm

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    It's possible if the game is fillrate limited. Radeon 6800 has a fillrate advantage over the 3090, I think.
     
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