There's a project working on making CUDA work on all (read: AMD) graphics cards. It's alpha-level, but the progress makes it look promising.

https://www.tomshardware.com/software/a-project-to-bring-cuda-to-non-nvidia-gpus-is-making-major-progress-zluda-update-now-has-two-full-time-developers-working-on-32-bit-physx-support-and-llms-amongst-other-things

e: Tom's Hardware links are half the size of the article 😂