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. https://blogs.unity3d.com/2018/12/26/directx-12-on-xbox-one-now-available-with-unity-2018-3/
blog article
DIRECTX 12 ON XBOX ONE NOW AVAILABLE WITH UNITY 2018.3
DirectX 12 is the latest version of Microsoft’s graphics API designed to enable a reduction of driver overhead, allowing better use of multi-core systems. Depending on your project, you could see some great performance improvements with DirectX 12. For example, with our Book of the Dead: Environment scene we have seen a frame rate increase of over 8% running at 1440p on Xbox One X.DirectX 12 on Xbox One brings with it Unity’s new Native Graphics Jobs, which also contributes a significant CPU performance improvement. Alongside these performance benefits, DirectX 12 also brings support for new rendering techniques in Unity, starting with Async Compute, which is available with DirectX 12 on Xbox One out of the box. Async Compute provides valuable GPU performance improvements for any titles that make use of compute on Xbox One. READ MORE