I was talking about ROCm vs Vulkan. On AMD GPUs, Vulkan has been commonly recognized as the faster API for some time. Both have been slower than CUDA due to most of the hosting projects focusing entirely on Nvidia. Parent post seemed to indicate that newer ROCm releases are better.

Yes, Vulkan is currently faster due to some ROCm regressions: https://github.com/ROCm/ROCm/issues/5805#issuecomment-414161...

ROCm should be faster in the end, if they ever fix those issues.