So in the case of Mesa building against the D3D12 Agility SDK, it can opt into making use of newer D3D12 functionality without the Windows upgrade. Rather than always tying new Direct3D features to new Windows versions, the Agility SDK breaks that link with this redistributable SDK build that applications can opt into without requiring users to upgrade their Windows installation for new graphics features. The DirectX 12 Agility SDK amounts to a re-distributable Direct3D 12 build.
For bettering Mesa on Windows, Microsoft has now added support for compiling against the DirectX 12 Agility SDK.
OpenGL, OpenCL, Vulkan, and VA-API video acceleration have been the primary targets for Microsoft engineers working on Mesa with the Windows Subsystem for Linux in mind while also posing other possible use-cases where the host may lack native drivers for those APIs. Control receives a 6% performance improvement, and F1 22 gets a 17% increase.Windows users are increasingly making use of Mesa with Microsoft investing in supporting a number of different open, industry standard APIs and then layering them atop the underlying Direct3D 12 driver for the likes of WSL2 usage. 4K performance is better in some titles, too. This is thanks to Nvidia’s efforts to optimize shader compilations and reduce CPU overhead. Given how demanding some of these games can be, that’s a big upgrade. Assassin’s Creed Valhalla, Cyberpunk 2077, and Forza Horizon 5 each get performance improvements of up to 24% depending on your hardware. Nvidia made a post covering the DX12 improvements found in the driver, and it outlines some performance figures for a handful of games. It’s also assumed that some of these improvements will benefit RTX 20 Series cards as well. These drivers are mainly geared towards the RTX 30 Series cards, offering improved performance there. Nvidia just released its latest driver which improves DX12 performance in various titles. Fortunately, there is a silver lining for the rest of RTX users. But, it’s undeniably a very expensive graphics card that many people cannot afford. Nvidia’s RTX 4090 is finally here and brings seriously impressive performance for 4K gaming.
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