It does work on a 2018 Macbook pro, so I am set for now. Odd that the MBP has a RX560X with half the vram, and it is supported.

Well, that's my first swift program. Result: AMD Radeon RX 580 false Full disclosure time. This is a Mac Pro 5,1 teased into running Monterey 12.0.1 with a popular tool. Is it possible that suppportsRayTracing has some dependency on also having an iGPU or T2 as well as a discrete AMD on intel platforms?

Sadly, I am just proficient enough to get the project to compile and run within X-code. So, short of tossing in a printf, I am outside my league. I did check the scheme, and Shader/API validation was turned off. Just for grins, turned off Metal validation as well. As the RX580 is the only GPU in the system, and it is recognized as metal capable, I'm not sure what else would be causing the "A GPU with supportsRaytracing is required" besides the API indicating it. This is for both Photo Catch and HelloPhotogrammetry. I do have one other machine that I can try Monterey on, but it is right on the edge of what is considered compatible... a 2018 MBP with 4GB RX560X

Did you have any luck sorting this out? I have looked all over, and everything says that an RX580 should be enough, but I get the same error.