Blender Cycles: OpenCL now is on par with CUDA - BlenderNation
AMD Supports HIP-based Rendering for Blender 3.0 Beta - Architosh
GitHub - renamedquery/blender-cuda-subdivision-surface-gpu: A Blender 3.0.0 fork that will allow you to subdivide complex meshes using CUDA compatible GPUs. (WIP)
Getting Blender to use CUDA in a render farm – Peter Mount's Blog
How can I get started with Blender Cycles/HIP Rendering? - Fedora Discussion
Blender GPU Rendering: CUDA vs OptiX - The Good and The Bad