Current Generation Hardware Speculation with a Technical Spin [post GDC 2020] [XBSX, PS5]

Discussion in 'Console Technology' started by Proelite, Mar 16, 2020.

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  1. Jay

    Jay
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    Believe new controller has USB C if that's any help. (or is that just the elite 2)
     
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  2. BRiT

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    Why? What will you even use USB for on this console?
     
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  3. PSman1700

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    Had never expected any secret sauce :p Just standard hardware from AMD, basically.
     
  4. mrcorbo

    mrcorbo Foo Fighter
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    There's also this:

     
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  5. Love_In_Rio

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    Dont cancel, the console sounds really great and well engineered!.
    Yes, all related to the SSD tech sounds great, above all this about virtual visual RAM. Is only i hoped for something that went beyond what Nvidia is nowadays accelerating in the RT space.
     
  6. BRiT

    BRiT (>• •)>⌐■-■ (⌐■-■)
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    Well. In that case ... The magic sauce is it wont cost you over $900 and you get an entire system with it!
     
  7. DavidGraham

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    You seriously believe this kind of first grade calculations? And No, the CUDA cores are not idle during RT ops.

     
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  8. Lurkmass

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    Other hardware feature additions to the new consoles includes the following:

    Over/Under-estimate Conservative Rasterization
    Primitive Ordered Pixel Shaders
    Sparse 3D Images
    Post-depth Coverage
    Packed Math (already implemented with two console vendors)
    Sub-Dword Addressing (SDWA instructions)
    Data Parallel Processing (DPP instructions)

    The listed below are subset functionality to the console implementations of mesh shaders:

    Broadcasting to Multiple Viewports
    Per-view Attributes
    Fast Geometry Shaders
     
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  9. Proelite

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    Can you do some calculations? I am open to all number crunching.
     
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  10. DavidGraham

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    We can't, the quoted metrics are not the same, as explained above.

    NVIDIA's GigaRays metric encompasses a lot of ray intersections, but we don't know how to convert GigaRays into intersection tests. Since we lack the formula.
    The Xbox quoted intersection tests also lack context, we don't know how many intersection tests are in any given GigaRay. We lack the formula, so we can't convert them.

    Microsoft states the Xbox is capable of doing the equivalent of 13TF of Ray Tracing through it's RT cores, NVIDIA claims 23TF through RT cores and additional 2TF through the concurrent INT/FP execution.

    [​IMG]
     
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  11. 3dilettante

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    It's more traditional to want a very consistent target. The current gen had some opportunities for dynamic clocks (Jaguar's turbo at that time was debatable), and they opted not to do so.
    Having the option to vary platform clocks with SMT is something of a change, although in this case it's at developer behest. I'm curious how this is handled, perhaps like a VM spin-up, versus the BIOS-level settings needed for PCs to change SMT mode.

    52 CUs x 4 TMUs x 1.825 GHz = 379.6 billion/s of something.
     
  12. bgroovy

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    VR?
     
  13. BRiT

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    I concede that point, but you can still have USB 3.1 without the USB-C plug.


    *Assuming MS even supports VR, which they have not talked about.
     
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  14. mrcorbo

    mrcorbo Foo Fighter
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    FWIW, I think tethered VR has a limited appeal.
     
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  15. MrFox

    MrFox Deludedly Fantastic
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    Heh, not everyone thought 350 was that crazy....
    Funny how my method of aligning to a known substrate pitch was correct, and I was so off compared to everyone else, including digital foundry, that I thought my 0.40 pitch must be wrong. :runaway:
     
  16. Proelite

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    I measured 380mm2 using the GDDR6 size.

    I had a feeling that they would stick to ~360mm2 before all the SOC shots threw me off.
     
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  17. MrFox

    MrFox Deludedly Fantastic
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    Which one is official? Is 360.45 from microsoft themselves?
     
  18. Proelite

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    YEP.
     
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  19. MrFox

    MrFox Deludedly Fantastic
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    Glad to see a reasonable die size and rdna2's big improvement just in time for next gen, it means the doom-and-gloom about price was an overreaction, the SoC is practically the same size as previous launch consoles. I'm not really worried about the ram cost because the weird two speed partitions is a good indication they still try to design to a price point. And the power should be maybe a little above 200W and not too expensive cooling.

    Questions remain about the BOM: the SSD size and cost, the increased cost of 7nm, and the proprietary storage expansion. It sucks that it's proprietary but we went through all the possibilities and it was pretty much expected.
     
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  20. BRiT

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    I think you're asking about the SSD node process size? Cause I thought they already specified 1TB of SSD Capacity, maybe even last year at VGAs.
     
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