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Microsoft adds some DirectX 11.1 features to Windows 7 - KB 2670838

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#1 Liskiller

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Posted 15 November 2012 - 01:42 AM

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Last week I reported - An Microsoft employee posted in Microsoft Answers forum that Microsoft will keep DirectX 11.1 as an exclusive for Windows 8, along with Windows RT and Windows Server 2012 but now on the Games for Windows and the DirectX SDK blog, the company reveals that some of DirectX 11.1 features are being made available on Windows 7 Service Pack 1 via the platform update KB 2670838 included in Internet Explorer 10 Release Preview for Windows 7. The new features are limited to the WDDM 1.1 drivers on Windows 7.

 

Update (Feb 28, 2013): The final version of IE10 for Windows 7 is now available to download!

Here is a quick summary of what the update adds to Windows 7 Service Pack 1:

  • ID3D11Device1, ID2D1Factory1, IDWriteFactory1, IDXGIFactory2, IWICImagingFactory2, ID3DUserDefinedAnnotation and related APIs are available. Methods that depend on WDDM 1.2 drivers or new Windows Store app APIs are not supported.
  • Improved Direct3D 11 device interoperability via ID3DDeviceContextState, including the improved interop with Direct2D/DirectWrite
  • D3D11_FEATURE_DATA_D3D9_OPTIONS feature detection
  • In addition to the new Windows 8 WIC features, this update also fixes decoding of 96bpp floating-point TIFF images.

These DirectX 11.1 features will continue to be exclusive to Windows 8:

  • Feature Level 11.1 hardware
  • All D3D11_FEATURE_DATA_D3D11_OPTIONS features for Feature Level 10.x/11.0 devices
  • 16bpp format support (DXGI_FORMAT_B5G6R5_UNORM, DXGI_FORMAT_B5G5R5A1_UNORM, DXGI_FORMAT_B4G4R4A4_UNORM)
  • Tile-based Deferred Renderer optimizations (D3D11_FEATURE_DATA_ARCHITECTURE_INFO)
  • HLSL minimum precision shader optimizations (D3D11_FEATURE_SHADER_MIN_PRECISION_SUPPORT)
  • DXGI 1.2 features for Stereo, Occlusion status notifications, Desktop Duplication, and NT Handle shared resources
  • Windows Store app ICoreWindow features of DXGI 1.2
  • WARP support for Feature Levels 11.0 and 11.1
  • Direct3D hardware support in Session 0
  • The DirectComposition API

Source: Games for Windows and the DirectX SDK, KB 2670838



#2 Darren 54

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Posted 15 November 2012 - 03:01 AM

So if I have installed IE10 on Windows 7, I already have DirectX 11.1?

#3 pcHuntqwerty

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Posted 15 November 2012 - 09:03 AM

If you have KB2670838 update installed, then you have some of the DirectX 11.1 features.

#4 ThunderROM

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Posted 15 November 2012 - 11:27 AM

ID3D11Device1, ID2D1Factory1, IDWriteFactory1, IDXGIFactory2, IWICImagingFactory2, ID3DUserDefinedAnnotation and related APIs are available...


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#5 Borix

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Posted 15 November 2012 - 03:53 PM

MS always using its proprietary standards to fuck the customer in the a**.

I gave up hope, it will never change :)

#6 Secured Tim

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Posted 16 November 2012 - 05:30 AM

Sweet! :D

#7 Guest_Zed_*

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Posted 17 November 2012 - 09:00 PM

Lets talk about the real world benefits of DX11.1, are there any?

#8 deleted002

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Posted 03 March 2013 - 09:41 AM

This update is useless in combination with a dual graphics card. I have a GTX 690 and this update does not support dual graphics cards. If I test with 3DMark 2013 Firestorm Achieve I score of 1 video card. Matter of better test next time for Microsoft. So I can not install Internet Explorer 10 because this patch with IE10 and DirectX is combined.



#9 pcHuntqwerty

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Posted 03 March 2013 - 10:49 AM

Lets talk about the real world benefits of DX11.1, are there any?

Yes, DirectX 11.1 delivers improvements in a variety of areas, including stereo 3D support, video processing, GPU compute, 2D rendering, and even power efficiency. So yes, you will get better performance with the update KB2670838 installed.



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