ROCm 6.4.0

GPU architecture/gfx-target support and PyTorch compatibility verified 2026-08 at 6.4.x minor-line granularity (not independently re-confirmed for every patch release within the line -- see README's Automated-freshness-check / Data-status section for why). PyTorch compatibility source: AMD's official compatibility-matrix page's Framework Support table for docs-6.4.0 (rocm.docs.amd.com .../compatibility/compatibility-matrix.html), normalized from AMD's listed patch versions to their parent minor version, matching this site's PyTorch granularity elsewhere. Release date from AMD's official ROCm release-history page (rocm.docs.amd.com/en/latest/release/versions.html). Corrected 2026-09-27: gfx1200/gfx1201 (RDNA 4) removed. Neither AMD's 6.4.0 compatibility matrix nor its 6.4.0 system-requirements page lists them; they first appear in 6.4.1. gfx906 is listed as Unsupported on the current 6.4.0 system-requirements page, but the Wayback Machine copy from 2025-05-13 shows Radeon VII and Radeon PRO VII as Deprecated (MI50 already Unsupported), so AMD changed this page after release. This entry follows the current page. listedCards: the GPUs AMD names as supported (or deprecated) for this release on rocm.docs.amd.com/projects/install-on-linux/en/docs-6.4.0/reference/system-requirements.html, checked 2026-09-27. A card counts as officially supported only if it is named here; sharing a listed card's gfx target is not the same thing.