Microsoft recently previewed a new debugging feature - DirectX Dump, which is designed to help game developers analyze and diagnose game crashes more efficiently at the graphics API level. This feature is currently released as a preview version and requires GPU manufacturers to provide corresponding support in the graphics card driver. AMD is known to have taken the lead in providing a preview driver that supports this feature for Radeon graphics cards.

When this feature is enabled, a detailed crash dump file with a ".dxdmp" file extension is collected and generated when a DirectX runtime crash occurs. The in-game crash handler can pass this file back to the game developer for subsequent analysis. 

Developers can use Microsoft's PIX (Performance Investigator for Xbox) tool to conduct in-depth analysis of these dxdmp files to locate specific fault causes at the graphics API level and improve game stability and user experience.