I don't think this is true, or at least as simple a story as "Vulkan is faster". OpenCL is already a pretty good and modern API, and computation in Vulkan does

I don't think this is true, or at least as simple a story as "Vulkan is faster". OpenCL is already a pretty good and modern API, and computation in Vulkan doesn't seem like it's the main point. It's my impression that Vulkan is mostly fast compared to OpenGL, and particularly by removing driver overheads, but that has never really been a big problem with OpenCL. Last year, I had a student add a Vulkan backend to a GPU-targeting compiler[0]. Compared to the OpenCL backend, many programs ran substantially slower, and very few ran faster. It's certainly possible that this backend is imperfect, but it's more of a data point that I have seen elsewhere. [0]: https://futhark-lang.org/student-projects/steffen-msc-project.pdf https://futhark-lang.org/student-projects/steffen-msc-projec...