Xbox One: DirectX 11.1+ AMD GPU , PS4: DirectX 11.2+ AMD GPU what's the difference?

Discussion in 'Console Technology' started by onQ, Aug 29, 2013.

  1. Betanumerical

    Veteran

    Joined:
    Aug 20, 2007
    Messages:
    1,686
    Likes Received:
    155
    Location:
    In the land of the drop bears
    the vgleaks information suggest modifications but nothing drastic really, and they have been spot on for information for nearly everything so I find it hard to believe that they would miss something so major.
     
  2. dobwal

    Legend Veteran

    Joined:
    Oct 26, 2005
    Messages:
    5,311
    Likes Received:
    1,335
    Even if the XB1, PS4 and VI gpu sported the exact same GCN 1.1 cores wouldn't all the additional gpu logic on the XB1 that exist outside the GCN 1.1 cores encourage a superset of 11.2.

    11.x in and of itself doesn't mean that XB1 has access to GCN core features that arent available to other 11.2 based hardware.

    Nevermind that we have Mono, Mantle and what the PS4's lower level API is called which provides even more intimate control and exposes more features of the GCN hardware.
     
  3. pjbliverpool

    pjbliverpool B3D Scallywag
    Legend

    Joined:
    May 8, 2005
    Messages:
    7,708
    Likes Received:
    911
    Location:
    Guess...
    It seems likely both XB1 and PS4 will feature the same IP as Bonaire and Hawaii minus TruAudio. And in turn that that IP is only a minor upgrade over the IP of the original GCN GPU's.

    Or in other words aside from the increased queues in the ACE's the feature set of XB1 should be virtually identical to the first GCN GPU's released 2 years ago. That is to say, a superset of DX11.2.
     
  4. dobwal

    Legend Veteran

    Joined:
    Oct 26, 2005
    Messages:
    5,311
    Likes Received:
    1,335
    There is more to GCN 1.0 versus 1.1 then increased ACE queues.
     
  5. kots

    Regular

    Joined:
    Oct 30, 2008
    Messages:
    394
    Likes Received:
    0
    Not the proper thread to ask i suppose , but is my nvidia 670 only dx11 ? No dx11.1 or .2 ?
     
  6. homerdog

    homerdog donator of the year
    Legend Veteran Subscriber

    Joined:
    Jul 25, 2008
    Messages:
    6,262
    Likes Received:
    1,030
    Location:
    still camping with a mauler
    It is mostly DX11.1 compliant and fully supports the 11.2 feature set (whether tier 1 or 2 IDK). There is some confusion over this (for good reason). It supports 11.1 and 11.2 from the 11.0 feature level. Makes sense, right? :lol:
     
  7. willardjuice

    willardjuice super willyjuice
    Moderator Veteran Alpha

    Joined:
    May 14, 2005
    Messages:
    1,385
    Likes Received:
    299
    Location:
    NY
    This is a bit misleading. It is d3d feature level 11.0 that also supports some optional features. I don't believe it supports any 11.1 feature level features (I could be wrong though). It also supports tier 1 tiled resources.
     
  8. homerdog

    homerdog donator of the year
    Legend Veteran Subscriber

    Joined:
    Jul 25, 2008
    Messages:
    6,262
    Likes Received:
    1,030
    Location:
    still camping with a mauler
    Hey, don't blame me for Microsoft's awkwardness :razz:

    Kepler enables all 11.1 features except:

    - Target-Independent Rasterization (2D-Rendering)
    - 16xMSAA Rasterization (2D-Rendering)
    - Orthogonal Line Rendering Mode
    - UAV in non-pixel-shader stages

    Kepler fully supports DX11.2 feature set. I believe it is level/tier 1, but in Microsoft vernacular that is still full support. Hell, MS used a gf770 in the DX11.2 announcement demo.
     
  9. willardjuice

    willardjuice super willyjuice
    Moderator Veteran Alpha

    Joined:
    May 14, 2005
    Messages:
    1,385
    Likes Received:
    299
    Location:
    NY
    Right, those are the features unique to 11.1. Everything else they support was already optional in 11.0. Really they support all of 11.0 (including optional features), not "most of 11.1".
     
  10. homerdog

    homerdog donator of the year
    Legend Veteran Subscriber

    Joined:
    Jul 25, 2008
    Messages:
    6,262
    Likes Received:
    1,030
    Location:
    still camping with a mauler
    Yes, but that is about as accurate as saying "most of 11.1" IMO considering those optional features are required for feature level 11.1, and Kepler supports most of the mandatory features in DX11.1.

    Anyway this is an argument over semantics. I think we have sufficiently answered kots' question :)
     
  11. Metal_Spirit

    Regular Newcomer

    Joined:
    Jan 3, 2007
    Messages:
    545
    Likes Received:
    331
    Remember This?
    AMD Tiled Resources Presentation!

    [​IMG]

    Now... remember this?

    From Sony PS4 GCD Europe 2013 presentation

    [​IMG]
    [​IMG]

    Although this does not show the supported Tier, I find it funny they used the AMD image with the note "Like this, but in hardware".

    It seems to imply some kind of improvement... Like Tier 2...

    Do you agree?
     
  12. MJP

    MJP
    Regular

    Joined:
    Feb 21, 2007
    Messages:
    566
    Likes Received:
    187
    Location:
    Irvine, CA
    iroboto and BRiT like this.
  13. Metal_Spirit

    Regular Newcomer

    Joined:
    Jan 3, 2007
    Messages:
    545
    Likes Received:
    331
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...