Very slow GPU rendering in Cycles (opencl). Blender 2.81 - Blender Development Discussion - Blender Artists Community
AMD RX 580 gpu error cycles render - Technical Support - Blender Artists Community
Artifacts and inconsistencies when rendering with rx580 across multiple versions of RPR and Blender · Issue #456 · GPUOpen-LibrariesAndSDKs/RadeonProRenderBlenderAddon · GitHub