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  1. #1
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    PlayStation 4 GPU compute, queues and pipelines

    A lot of rumors are flooding internet about GPU enhancements in PS4. We will try to give more info about this AMDs custom graphic card inside PS4.

    As we said Liverpool GPU is derived from R10XX family from AMD (Southern Islands). Front end blocks, back end blocks, and the basics of the shader cores remain largely unchanged. But they have added some major new additions (mostly aimed at improving the capabilities and efficiences of compute workloads).

    Liverpool has multiple compute rings and pipes that provides fine control over how the system resources are divided amongst all of the applications GPU workloads. This pipelines can perform simulteneous asynchronous compute.

    This diagram exposes the queues and pipelines from PS4 GPU (you can click to enlarge the image).


    PS4 GPU has a total of 2 rings and 64 queues on 10 pipelines

    - Graphics (GFX) ring and pipeline

    Same as R10xx
    Graphics and compute
    For game
    *

    - High Priority Graphics (HP3D) ring and pipeline

    New for Liverpool
    Same as GFX pipeline except no compute capabilities
    For exclusive use by VShell
    *

    - 8 Compute-only pipelines

    Each pipeline has 8 queues of a total of 64
    Replaces the 2 compute-only queues and pipelines on R10XX
    Can be used by both game and VShell (likely assign on a pipeline basis, 1 for VShell, and 7 for game)
    Queues can be allocated by game system or by middleware type
    Allows rendering and compute loads to be processed in parallel
    Liverpool compute-only pipelines do not have Constant Update Engines (presented in R10XX cards)
    http://www.vgleaks.com/orbis-gpu-com...and-pipelines/

    looks like the RAM is not the only thing MS needs to address

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    Can u speak english please?

    Dumbed down version, is this good?

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    Sony seems hell bent on giving all control to the devs of how they wanna use the hardware. Does compute refer to general purpose computations?

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    So um, in normal person talk this means?

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    Quote Originally Posted by Kopkiwi View Post
    So um, in normal person talk this means?
    Super Graphics Power #1

    -=[ PSN ID: Tha_MonkeyClaw ]=-

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  7. #6
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    Quote Originally Posted by itachi73378 View Post
    Sony seems hell bent on giving all control to the devs of how they wanna use the hardware. Does compute refer to general purpose computations?
    Not general purpose, but rather, heavy compute. (Physics and such)

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    It seems the GPU has been made very efficient,
    For example its capable at loading multiple work loads without a sweat
    We need Mynd or lefein in here really to explain it properly
    If you look at the Killzone footage with the explosion and how everything reacted to it this makes sense, some was saying that was a Cgi overlay belive it or not
    Battlefield 4 should look amazing wih its destructible environments

    Sent via Codec



    Sent via Codec
    Last edited by TGO; 02-25-2013 at 23:38.

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    In normal people speak I think, PS4 is opposite to PS3? Strong, versatile GPU engineered to assist weaker CPU.

    Sounds about right for the way GPU technology has been headed in recent years

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    How does it all translate to what the final product will be priced at...? PS4 start to sound more and more expensive the more I hear about it.




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    Compute units are they just AMDs way of measuring things?

    Nvidia has CUDA cores.

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    Quote Originally Posted by Lefein View Post
    Not general purpose, but rather, heavy compute. (Physics and such)
    Personally, i want to see a HUGE jump in physics simulations on the PS4 compared to last gen. I would even be super satisfied with slightly improved last gen graphics (better textures + 1080p resolution) BUT have insane physics! I would seriously cream my pants uncontrollably if the next Motorstorm has the physics shown in the 2005 trailer!

    http://www.youtube.com/watch?v=WqzpU-MyVRg

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    I don't understand any of this $#@!, but I love the names they give these cards...Southern Islands and Volcanic Islands or some $#@!. What's up with graphic cards and islands? We need some North Island $#@! up in this orbis $#@!...NZ FTW!

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    It sound great but I don't understand in these things lol.


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    Don't understand either. Too detailed for me, lol.

    BTW that sig is awesome, Syphon.

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    the PS4 GPU will also have its own memory besides the 8 gigs of ddr5

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    Quote Originally Posted by Ghost-Rhayne View Post
    I don't understand any of this $#@!, but I love the names they give these cards...Southern Islands and Volcanic Islands or some $#@!. What's up with graphic cards and islands? We need some North Island $#@! up in this orbis $#@!...NZ FTW!
    How bout some Kona gold or Maui wowey? Oh yeah.

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    Quote Originally Posted by coolguy View Post
    the PS4 GPU will also have its own memory besides the 8 gigs of ddr5
    GDDR5, ddr5 is different and ain't out yet

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    Sounds like a powerful yet efficient GPU. Hope it doesn't drive up the console price.

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    Sounds good, even though i dont understand any of it. I dont care about the price of the ps4, i will be buying day one.
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    Quote Originally Posted by radgamer420 View Post
    Sounds like a powerful yet efficient GPU. Hope it doesn't drive up the console price.
    Because Sony is actually buying these modified part as oppose to making them it cuts the production costs down a lot, not Sony plants for making PS4 parts and less R&D
    I expect a price thats not stupidly cheap ($300) but not expensive ($600)
    I'm expecting a $400-$500 price tag

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  23. #21
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    Quote Originally Posted by TGO View Post
    Because Sony is actually buying these modified part as oppose to making them it cuts the production costs down a lot, not Sony plants for making PS4 parts and less R&D I expect a price thats not stupidly cheap ($300) but not expensive ($600) I'm expecting a $400-$500 price tag Sent via Codec
    That definitely works for me.

  24. #22
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    Quote Originally Posted by Green Michine View Post
    Sounds good, even though i dont understand any of it. I dont care about the price of the ps4, i will be buying day one.
    Same here.

  25. #23
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    400-500? 2 and a half days work, I'll take it

    Sent from my Note II

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  27. #24
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    Quote Originally Posted by Ghost-Rhayne View Post
    I don't understand any of this $#@!, but I love the names they give these cards...Southern Islands and Volcanic Islands or some $#@!. What's up with graphic cards and islands? We need some North Island $#@! up in this orbis $#@!...NZ FTW!
    lol

    I heard they named the circuitry after Auckland's arterial motorway and roads system - 'Spaghetti Junction'.
    Be Together - Not the same.



  28. #25
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    Quote Originally Posted by YoungMullah88 View Post
    400-500? 2 and a half days work, I'll take it

    Sent from my Note II
    Funny that, its only 100-200 off the PS3 price yet people said they'd need 2 jobs

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