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Windows Central
Windows Central
Technology
Cale Hunt

PC gamers are about to get a free performance upgrade — Microsoft's latest DirectX update boosts ray-tracing performance by up to 90%

Microsoft Nvidia
DirectX 12.

Microsoft is always working on DirectX behind the scenes, making large and small tweaks to the API. For its latest update, which brings the DirectX Agility SDK up to version 1.619, there are some exciting improvements to ray tracing performance.

I'm talking specifically about Shader Execution Reordering (SER), a feature that's arrived officially for DirectX Raytracing (DXR) 1.2. It had been in preview status since being announced last year at GDC 2025. The big news? Microsoft is seeing up to a 90% framerate increase with SER activated in early demos.

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