alt Hacker NewsAMD has separate architectures for GPU compute (Instinct https://www.amd.com/en/products/accelerators/instinct/mi300....) and consumer video (Radeon).
AMD are merging the architectures (UDNA) like nVidia but it's not going to be before 2026. (https://wccftech.com/amd-ryzen-zen-6-cpus-radeon-udna-gpus-u...)
You can use ROCM on consumer radeon as long as you pay more than 400 dollars for one of their gpus. Meanwhile, you can run stable diffusion with the -lowvram flag on a 3050 6gb that goes for 180 dollars