AMD: Navi Speculation, Rumours and Discussion [2019]

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

  1. Digidi

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    Frontend cotains Geometry and Rasterizer. Looks that they sapperated rasteriser and geometry professor.

    Also Strang 8 prim shader in and 4 prim shader out, what does this mean.
     
  2. iroboto

    iroboto Daft Funk
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    Just curious but if I understand this correctly you know more about Navi then what will be presented in the next hour? You anticipate that you won’t hear anything new?
     
  3. DavidGraham

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    Is RDNA 2 the arc that will be featured in consoles?
     
  4. GPUCurious

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    Is the rumored change to 8 shader engines true?
     
  5. Frenetic Pony

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    And yet doubling down on mentioning them in next gen consoles.

    So, wow, that's it. That's all AMD has to offer, and at that cost?
    Wow... these are some terrible numbers for 7nm. It's a good thing Nvidia likes its high margin business and both Sony and MS want backwards compatibility.

    Severely disappointed in AMD is an understatement. They had all the opportunity in the world with Turing offering so little in terms of price vs performance and performance per mm. And this is all they deliver?

    Edit - Ryan where on earth did all these extra transistors go? Is the front end and fixed function units really big enough to account for doubling the transistor count with almost no extra CU's compared to Polaris?
     
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  6. Digidi

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    Thank you Ryan!
    My questions:
    How does the new Frontend working? What are „Prim Units“ and why they have 4 out and 8 in?
     
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  7. Bondrewd

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    There's actually two SEs on the block diagram.
     
  8. AlBran

    AlBran Ferro-Fibrous
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    Should I hold my breath for a white paper. :p
     
  9. Ryan Smith

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    The press has been fully briefed on Navi. I don't know about anything else AMD is presenting, and all of our embargoes have ended.
    My understanding (emphasis on that term) is that the consoles are Navi + some custom extras. Mainly, the RT hardware. I do not know if it'll be the same RT hardware as in RDNA 2. AMD doesn't talk about future products and they definitely don't talk about customers' semi-custom silicon.
    I haven't heard anything about this (even the rumor).
    It's Vega's primitive shader. You can use it to cull polygons at a rapid rate. From Vega: "A new shader stage that runs in place of the usual vertex and geometry shader path, the primitive shader allows for the high speed discarding of hidden/unnecessary primitives. Along with improving the total primitive rate, discarding primitives is the next best way to improve overall geometry performance, especially as game geometry gets increasingly fine, and very small, overdrawn triangles risk choking the GPU."
     
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  10. Ike Turner

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    Navi = Polaris in terms of market segment. This was relatively clear for a while now.
     
  11. Ryan Smith

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    I'm not aware of one (I'd like one too!)
     
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  12. Digidi

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    Thank you Ryan!
     
  13. itsmydamnation

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  14. Digidi

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  15. itsmydamnation

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    By far my biggest disappointment is price a 250mm die with 8gb memory , last time AMD had one of those it sold for $240 USD.

    instead of NAVI maybe i will toss up the idea of strapping an AIO on my vega 56............
     
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  16. Bondrewd

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    This is N7.
     
  17. itsmydamnation

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    So? and in 2016 14nm was new, 7N doesn't cost that much.......
     
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  18. Ike Turner

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    Things change quite a bit once your main competitor start pricing its products upwards of $1000...because..."fuck it! we can!"..the market has changed... At the end of the day a Radeon VII doesn't seem like a bad investment after all for someone who doesn't want a GPU only for gaming. Actually it's a really good offering for content creators.
     
    #798 Ike Turner, Jun 11, 2019
    Last edited: Jun 11, 2019
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  19. Adonisds

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    Will RX 5700 have HDMI 2.1? I think the prices are way too high
     
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  20. Frenetic Pony

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    Well then there's the 20 per SE from last year's Vega mobile update.

    Much gratitude.

    Also explains why Arcturus and 5nm suddenly disappeared in favor of 7nm+ and "next gen" next year.

    Feels like a halfway point for developing Sony/MS specd consoles. I'd second the call for detailed culling and Geo tests. Those transistors had to go somewhere.
     
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