# Microsoft Unveils DirectX 12 Agility SDK Updates

October 29, 2026 at 03:26 PM

> New DirectX 12 Agility SDK releases introduce Clustered Geometry and PTLAS, delivering massive performance gains for modern GPU hardware.

**Microsoft** has released **DirectX 12 Agility SDK** 1.620 Retail and 1.722 Preview, introducing Clustered Geometry and Partitioned Top-Level Acceleration Structures (PTLAS). These tools allow developers to update only changed scene portions and split geometry.

The 1.722 Preview shows massive gains; an **AMD Radeon RX 9070** sample saw performance jump from 1.2 FPS to 79 FPS. Build times dropped from 788 ms to 3.11 ms, while memory usage fell from 7.3 GiB to 774 MiB. Similar tech was used in **Gears of War: E-Day**.

The 1.620 Retail update adds Partial Graphics Programs for Radeon RX 7000 and 9000 GPUs, plus DirectX Dump Files for crash diagnosis. **Shader Model 6.10** is currently in preview, with a full retail release scheduled for early December via Agility SDK 1.621.


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