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RadeonSI Driver Now Uses ACO By Default For Pre-RDNA GPUs

As a very interesting end-of-year change for Mesa 25.0, AMD is now using the ACO compiler by default for pre-GFX10 (before RDNA / Navi) GPUs with the RadeonSI Gallium3D driver.

As a very interesting end-of-year change for Mesa 25.0, AMD is now using the ACO compiler by default for pre-GFX10 (before RDNA / Navi) GPUs with the RadeonSI Gallium3D driver. For Vega (GFX9) / CDNA and prior generations of AMD graphics, the ACO compiler back-end is used by default beginning with Mesa 25.0. The Mesa RADV Vulkan driver has long been using the ACO compiler by default for all supported GPU generations with Valve engineers working significantly on both.

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