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Windows 8 includes [[Windows Display Driver Model|WDDM]] 1.2 and [[DirectX Graphics Infrastructure]] (DXGI) 1.2. The [[Desktop Window Manager]] now runs at all times (even on systems with unsupported graphics cards; where DWM now also supports [[software rendering]]), and now also includes support for [[stereoscopy|stereoscopic 3D]] content.<ref name=dwm-alwayson>{{cite web|title=Desktop Window Manager is always on|url=http://msdn.microsoft.com/en-us/library/windows/desktop/hh848042%28v=vs.85%29.aspx|work=Windows 8 and Windows Server 2012 Compatibility Cookbook|publisher=MSDN|access-date=September 4, 2012|archive-date=July 28, 2012|archive-url=https://web.archive.org/web/20120728004613/http://msdn.microsoft.com/en-us/library/windows/desktop/hh848042(v=vs.85).aspx|url-status=live}}</ref>
Other major features include [[preemptive multitasking]] with finer [[granularity#Computing|granularity]] ([[Direct memory access|DMA]] buffer, primitive, triangle, pixel, or instruction-level),<ref>{{cite web |url=https://msdn.microsoft.com/en-us/library/windows/desktop/hh404504 |title=DXGI_Graphics_Preemption_Granularity Enumeration |publisher=Microsoft |work=[[Microsoft Developer Network]] |date=November 16, 2013 |access-date=February 23, 2015 |archive-date=February 24, 2012 |archive-url=https://www.webcitation.org/65hNwM4Rg?url=http://msdn.microsoft.com/en-us/library/windows/desktop/hh404504 |url-status=live }}</ref> reduced memory footprint, improved resource sharing, and improved timeout detection and recovery. 16-bit color surface formats (565, 5551, 4444) are mandatory in Windows 8, and Direct3D 11 Video supports YUV [[chroma subsampling|4:4:4/4:2:2/4:2:0/4:1:1]] video formats with 8, 10, and 16-bit precision, as well as 4 and 8-bit palettized formats.<ref>{{cite web |url=https://msdn.microsoft.com/en-us/library/windows/desktop/bb173059 |title=DXGI_FORMAT enumeration |publisher=Microsoft |work=Microsoft Developer Network |date=November 16, 2013 |access-date=February 23, 2015 |archive-date=February 24, 2012 |archive-url=https://www.webcitation.org/65hOMWr7T?url=http://msdn.microsoft.com/en-us/library/windows/desktop/bb173059 |url-status=live }}</ref> Display-only and render-only WDDM drivers were also supported. Display-only WDDM drivers allow basic 2D-only video adapters and virtual displays to function while contents are rendered by existing renderers or a software rasterizer. Render-only WDDM drivers will render screen contents to specified display processors, commonly seen on laptops with dedicated GPUs. Otherwise, a full graphics WDDM driver will function as both of the display and rendering.<ref>{{cite web |url=https://docs.microsoft.com/en-us/windows-hardware/drivers/display/wddm-in-windows-8 |title=WDDM 1.2 and Windows 8 |publisher=Microsoft |work=[[Microsoft Docs]] |date=December 15, 2021 |access-date=May 31, 2022 |archive-date=March 21, 2022 |archive-url=https://web.archive.org/web/20220321075957/https://docs.microsoft.com/en-us/windows-hardware/drivers/display/wddm-in-windows-8 |url-status=live }}</ref>
Windows 8.1 introduces WDDM 1.3<ref name="WDDM1.3">{{cite web |url=https://msdn.microsoft.com/en-us/library/windows/hardware/dn265512%28v=vs.85%29.aspx |title=What's new for Windows 8.1 display drivers (WDDM 1.3) |publisher=Microsoft |access-date=February 21, 2015 |archive-date=April 2, 2015 |archive-url=https://web.archive.org/web/20150402113112/https://msdn.microsoft.com/en-us/library/windows/hardware/dn265512%28v=vs.85%29.aspx |url-status=live }}</ref> and adds support for [[Miracast]], which enables wireless or wired delivery of compressed [[SD video|standard-]] or [[high-definition video]] to or from desktops, tablets, mobile phones, and other devices.<ref name="windows1"/>
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