Digital Foundry Article Technical Discussion [2021]

Discussion in 'Console Technology' started by BRiT, Jan 1, 2021.

  1. Silent_Buddha

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    It might be that instead of relying on NV's black box for all things BVH related, they are now building the BVH on the CPU for all platforms in order to have it be uniform for all platforms. Or something similar. That could explain why the CPU cost of RT has gone up.

    It is theoretically possible if RT involves a hit to the CPU in such a scenario that this could be a potential double whammy that "might" lead to better RT performance on XBS-X (slightly faster CPU versus a non-throttled PS5, wider compute and more bandwidth) in the future. But it's still far too early to say, and I'm still uncertain we'll ever be able to pin any performance differences to better or worse handling of RT. Especially as other parts of the architecture will come into play during any rendering scene.

    Regards,
    SB
     
    #1741 Silent_Buddha, May 5, 2021
    Last edited: May 5, 2021
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  2. Jay

    Jay
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    Probably less to do with being uniform, and more likely to be that particular implementation worked better so far.
    We've known for a while that some BVH processing has been done on cpu in the past.
    I'm probably mis remembering but I think it was because of the way leaf node data needs to be processed.

    Things like that would help XSS more than XSX compared to PS5 overall I would say.
     
  3. Nesh

    Nesh Double Agent
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    PS5 seems to deep a bit more compares to Series X
     
  4. Karamazov

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    and as expected, some dips to 45fps, like it's advertised. I imagine the meltdowns if anyone finds dips under 45fps.
     
  5. BRiT

    BRiT (>• •)>⌐■-■ (⌐■-■)
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    This is the DigitalFoundry Discussion thread. Anything not about their videos or articles directly will be purged going forward.
     
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  6. BRiT

    BRiT (>• •)>⌐■-■ (⌐■-■)
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    Resident Evil Village: The Digital Foundry Tech Review + PS5, Xbox Series X|S Analysis!

     
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  7. snc

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    Performance advantage in rt mode in heavy scanes roughly around 10-15% for xsx, ps5 very fast loading times 1.5s, 8.5s on xsx
     
  8. Karamazov

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    wonder if it could be locked if they dropped the res to 1440p CB.
     
  9. Jay

    Jay
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    That's a huge difference.
    Do we know install sizes yet?
     
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  10. snc

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    dynamic res would be even better
     
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  11. snc

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    I don't ;)
     
  12. mr magoo

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    maybe finally a game that takes advantage of ps5 specialised ssd capabilities. This is what 5-6 times faster
     
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  13. DSoup

    DSoup X
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    It's bonkers some people will be upset at having to wait 8.5 seconds. I mean, how the hell are you going to fill 8.5 whole seconds??? Clearly the agony of multi-minute load times from last gen are already fading in people's minds...
     
  14. Allandor

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    I would guess:
    PS5 got a "real" port
    Xbox got a package, that works with all xbox consoles. So no extra packaging process etc. The SSD is just used like a normal HDD.

    everything below 10s is ok for me ;)
     
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  15. iroboto

    iroboto Daft Funk
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    that's a nice lift.
     
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  16. BRiT

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    That's enough for me to fit in an entire singular yawn. Any longer and I just might fall asleep...
     
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  17. Dictator

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    I get the distinct feeling that load times are a bit not right or par for par in the implementation of loading across consoles. Obviously, the PS5's SSD is not that many times faster than a series S or Xs. Most likely a different loading implementation where Series console's are not being taken advantage of in comparison.
     
  18. cwjs

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    Really impressed they got the loading times that low on ps5. maybe a patch will bring us a little closer on xbox, although 8 sec is certainly tolerable.

    Great performance on both platorms! That series s version seems really nice, hope they offer a 30fps cap for rt someday though.
     
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  19. Jay

    Jay
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    Not fading from my mind, one of the reasons I stopped gaming at all.

    This is a technical discussion though, hence it is a big difference even though actual affect on gameplay is I would say only interesting not impact full.
    Especially as there's no loading screens during actual gameplay.
     
  20. iroboto

    iroboto Daft Funk
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    Great overall performance for all consoles. Series S oddly performing quite well at 1440p. Hopefully we'll see more of this going forward as we drop off last generation. RT definitely needed to come down in resolution however and get closer to holding a locked 30.
     
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