Start from https://amd-osx.com/.

> Do you have power management (and sleep) working on amd?

Yes (null-power-mgmt.kext) and yes. Though mind that this is a desktop, so power mgmt. / sleep needs are much less demanding than a laptop.

Specifically, the kext works by disabling power management from within OS X. However I have a kill-a-watt and the the power from the plug varies based on the CPU load, so it seems to be behaving correctly.

That said, I would not do this on a laptop. Just buy a MacBook Pro if you need that. My hackintosh needs are strictly because Apple (until a week or two ago) just didn’t make a computer as powerful as I needed. I’ll probably just go buy a Mac Pro in the first chance.

As long as the OS uses C-states when idle (and it does) you get the vast majority of Zen power savings, even without touching P-states (clock). E.g., https://www.youtube.com/watch?v=bzxn1hS7Nq4#t=6m21s

I'm typing this on a MBPro :)

With me being a quiet computing / low power fanatic, null power management isn't good enough I'm afraid. Not to mention that amd-osx says "sleep will either work or not".

Using a hackintosh desktop for the same reason as you and yes, considering getting a Mac Pro. But it's good to be aware of your alternatives.

Out of curiosity, what tasks do you use those Xeon/thread ripper CPUs for?

Kubernetes, Minikube, Skaffold, Docker. Skaffold especially hits you very hard, because it effectively compiles a docker image, sticks it into Kubernetes, and refreshes the Kubernetes cluster on every save. This is the only sane way to build a distributed app on K8s locally, but doing it for more than an hour legitimately increases the temperature in my flat by a degree or two.