Playstation 5 [PS5] [Release November 12 2020]

Discussion in 'Console Technology' started by BRiT, Mar 17, 2020.

  1. iroboto

    iroboto Daft Funk
    Legend Regular Subscriber

    Joined:
    Mar 6, 2014
    Messages:
    12,986
    Likes Received:
    15,717
    Location:
    The North
    hmm.. interesting. Well I can't see shit. So I'll wait for the internet sleuths to put something together.

    edit: oh ^^ what a beast -- frankly scary amount of breakdown here from this. I feel like a child looking adult channels where the cable box is fuzzing me out.
     
  2. ChuckeRearmed

    Regular Newcomer

    Joined:
    Nov 1, 2020
    Messages:
    366
    Likes Received:
    152
    "Bomba surprise that Sony likely cut down the 256-Bit FP pipes to just 128-Bit."

    What are the benefits of that?
     
  3. BRiT

    BRiT (>• •)>⌐■-■ (⌐■-■)
    Moderator Legend Alpha

    Joined:
    Feb 7, 2002
    Messages:
    18,768
    Likes Received:
    21,044
    Make's it skinnier.
     
  4. iroboto

    iroboto Daft Funk
    Legend Regular Subscriber

    Joined:
    Mar 6, 2014
    Messages:
    12,986
    Likes Received:
    15,717
    Location:
    The North
    uses less silicon. Makes it smaller.
     
  5. ChuckeRearmed

    Regular Newcomer

    Joined:
    Nov 1, 2020
    Messages:
    366
    Likes Received:
    152
    Damn, imagine how big PS5 would be if it had 256, if it is now that big with 128 :runaway::mrgreen:
    [​IMG]
     
    tuna, thicc_gaf, Nesh and 2 others like this.
  6. Globalisateur

    Globalisateur Globby
    Veteran Regular Subscriber

    Joined:
    Nov 6, 2013
    Messages:
    4,107
    Likes Received:
    3,027
    Location:
    France
    So no unified L3 cache? I guess we can all blacklist RedGamingTech now.
     
    RagnarokFF, Remij, Dictator and 5 others like this.
  7. chris1515

    Legend Regular

    Joined:
    Jul 24, 2005
    Messages:
    6,105
    Likes Received:
    6,378
    Location:
    Barcelona Spain
    Yes I am happy he is caught to have a bad source.
     
  8. Globalisateur

    Globalisateur Globby
    Veteran Regular Subscriber

    Joined:
    Nov 6, 2013
    Messages:
    4,107
    Likes Received:
    3,027
    Location:
    France
    Sony seem to have removed the FADD blocks.

     
    Pete, snc, TEEDA and 1 other person like this.
  9. Kugai Calo

    Newcomer

    Joined:
    Mar 6, 2020
    Messages:
    184
    Likes Received:
    181
    SSE is probably just fine consider games mostly deal with vector of length 4, and workload with heavy FP operations will be offloaded to GPU instead. But AVX is always handy if your workload is smaller and requires low latency.
     
  10. Tabris

    Newcomer

    Joined:
    Sep 24, 2011
    Messages:
    108
    Likes Received:
    166
    I like how they make the Geometry Engine in the center of the GPU block.
     
    megre likes this.
  11. vjPiedPiper

    Newcomer

    Joined:
    Nov 23, 2005
    Messages:
    115
    Likes Received:
    71
    Location:
    Melbourne Aus.
    I wouldn't be so sure about that, If you have gone to the effort to vectorize your code across 128bits, using AVX2 just gets double the perf for very minimal effort.
    AVX2 is pretty common in PC / general code, so it's makes the PS5 as the "odd one out" in terms of what is supported.
    Of course I'm just a lowly software engineer, and i'm sure that Sony have made a smart decision when looking at the balance of heat/performance/ease of use.
    Odd that AMD would go to the effort to remove it though.

    Perhaps the game industry has settled on AVX, and just not moved beyond that instruction set?
    They added AVX to the jaguar cores for last gen, so it must have been of use there.

    can't wait for more detailed analysis of the shots.
     
    Kugai Calo, BRiT and PSman1700 like this.
  12. chris1515

    Legend Regular

    Joined:
    Jul 24, 2005
    Messages:
    6,105
    Likes Received:
    6,378
    Location:
    Barcelona Spain
    It seems they cut FADD unit



    Two peoples seems to confirm it.
     
    Pete likes this.
  13. temesgen

    Veteran Regular

    Joined:
    Jan 1, 2007
    Messages:
    1,679
    Likes Received:
    484
    PS5 has the best console experience for Zork, fight me
     
    BoardBonobo and milk like this.
  14. JPT

    JPT
    Veteran

    Joined:
    Apr 15, 2007
    Messages:
    2,329
    Likes Received:
    793
    Location:
    Oslo, Norway
    So for the

    10 Print "Hello World!"
    20 Goto 10

    Crowd, what does it mean that they cut the FADD unit, for practical purposes?
     
    goonergaz likes this.
  15. JPT

    JPT
    Veteran

    Joined:
    Apr 15, 2007
    Messages:
    2,329
    Likes Received:
    793
    Location:
    Oslo, Norway
    I googled FADD, so its a floating point add instruction, which I then assume is a accelerator thingy, since the FPU is "basically" an accelerator for Real numbers math.
    Now the question, why does or does it not impact game development? I assume since MS added INT4 and INT8 for ML it does not have a big direct impact on ML algorithms that use INTs.
    Is a 3D engine based mostly on INT math?
     
  16. chris1515

    Legend Regular

    Joined:
    Jul 24, 2005
    Messages:
    6,105
    Likes Received:
    6,378
    Location:
    Barcelona Spain
    An intervention from sebbbi about the PS5 die



     
    Pete, megre, temesgen and 1 other person like this.
  17. Nesh

    Nesh Double Agent
    Legend

    Joined:
    Oct 2, 2005
    Messages:
    12,906
    Likes Received:
    3,072
    I am technically illiterate regarding these things. So what does all this mean in practice?
    Is the PS5 bottle necked somewhere because they removed something?
    What is this they removed and how does it fair next to competition?
     
  18. BoardBonobo

    BoardBonobo My hat is white(ish)!
    Veteran

    Joined:
    May 30, 2002
    Messages:
    3,522
    Likes Received:
    442
    Location:
    SurfMonkey's Cluster...
    So FADD removed as it would not really be used by games. But it is something that might be used in encoding e.g. compression and decompression. So it was redundant anyway due to the kraken block?
     
    damienw likes this.
  19. ChuckeRearmed

    Regular Newcomer

    Joined:
    Nov 1, 2020
    Messages:
    366
    Likes Received:
    152
    Probably. It seems they removed the parts are only needed for general computing and created custom implementation of what was not ready earlier.
     
    #8039 ChuckeRearmed, Feb 15, 2021
    Last edited by a moderator: Feb 15, 2021
    damienw, McHuj, PSman1700 and 2 others like this.
  20. BRiT

    BRiT (>• •)>⌐■-■ (⌐■-■)
    Moderator Legend Alpha

    Joined:
    Feb 7, 2002
    Messages:
    18,768
    Likes Received:
    21,044
    This is not a comparison thread, so please keep performance comparisons out of it to remain on topic.
     
    PSman1700 likes this.
Loading...

Share This Page

  • About Us

    Beyond3D has been around for over a decade and prides itself on being the best place on the web for in-depth, technically-driven discussion and analysis of 3D graphics hardware. If you love pixels and transistors, you've come to the right place!

    Beyond3D is proudly published by GPU Tools Ltd.
Loading...