1.    02 Jul 2015 #1
    Join Date : Jun 2015
    Posts : 236
    Win10 Pro x64

    Curious about Nvidia GPU and Directx12


    So I remember reading somewhere (several places actually but I really don't remember where) that all Nvidia GPUs that came supporting DX11.2 (I believe Kepler and Maxwell?) would also support DX12... However, when I run DXDIAG The main page says 12 but the second page with the feature levels tops at 11.0? (which should at least be 11.2 I thought )





    EDIT: I have a Gigabyte GTX 750 lol might help if I mention the GPU I'm using :P Which says on the box it supports 11.2
    Last edited by Carsomyr; 02 Jul 2015 at 21:22.
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  2.    02 Jul 2015 #2
    Join Date : Dec 2014
    Posts : 415
    Windows 10 Pro x64

    Because they cannot only support the full set of dx12. I don't kknow why your 750 doesn't show 11.2 - it is supposed to support that full set. Only Maxwell supports all of 12.

    http://www.extremetech.com/extreme/2...d-dont-deliver

    https://en.wikipedia.org/wiki/List_o...rce_700_Series
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  3.    03 Jul 2015 #3
    Join Date : Jun 2015
    Posts : 43
    windows 10 build 14951

    i have same thing with 760 GTX
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  4.    05 Jul 2015 #4
    Join Date : May 2015
    Posts : 1,624
    Win 10 X64 Pro 15063

    I'm not sure that the 353.38 drivers support DX12. Try reverting to 353.30.
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  5.    05 Jul 2015 #5
    Join Date : Jun 2014
    San Diego, CA
    Posts : 1,689
    Windows 10 Pro Insider Preview x64

    Quote Originally Posted by bobkn View Post
    I'm not sure that the 353.38 drivers support DX12. Try reverting to 353.30.
    353.38 definitely supports DX12, at least on Maxwell.

    Click image for larger version. 

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    Carsomyr,
    It is weird that 11.1 and 11.2 Feature Levels aren't showing up for you. Did they show up on earlier drivers? As for DX12, Nvidia may be holding off on Kepler until Windows 10 RTMs. That's just a guess though.
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  6.    05 Jul 2015 #6
    Join Date : May 2015
    Posts : 1,624
    Win 10 X64 Pro 15063

    Quote Originally Posted by blackroseMD1 View Post
    353.38 definitely supports DX12, at least on Maxwell.

    Click image for larger version. 

Name:	Untitled.png 
Views:	36 
Size:	19.2 KB 
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    Carsomyr,
    It is weird that 11.1 and 11.2 Feature Levels aren't showing up for you. Did they show up on earlier drivers? As for DX12, Nvidia may be holding off on Kepler until Windows 10 RTMs. That's just a guess though.
    Right. Now that I'm back at the machine, I see that 353.38 indeed supports DX12 (through 12.1) on a Maxwell GPU.

    No idea what the problem might be with a 750.
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  7.    05 Jul 2015 #7
    Join Date : Dec 2014
    Posts : 415
    Windows 10 Pro x64

    I don't think they (kepler) can support all of directx 12, only some of it, which means it will never show up as dx 12 in dxdiag.
    Kepler can't support dx 12 features that require hardware support that kepler already doesn't have. The first link I posted above explains it pretty well.
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