I've been playing around with it on M1 Max since the Alpha build with great results.

Here's some numbers from my latest benchmark run:

    "Junk Shop" demo using Cycles
    M1 Max (10 cores CPU / 32 cores GPU)

    Blender 3.0 (CPU) / 1:14.64 minutes
    Blender 3.1 (CPU) / 1:10.86 minutes (1.05x)
    Blender 3.1 (Metal GPU) / 0:44.16 minutes (1.68x)
    Blender 3.1 (Metal GPU+CPU) / 0:27.90 minutes (2.67x)

For a reference, RTX 3090 (OptiX) was 0:18.22

Make sure you have macOS Monterrey 12.3 beta (the Metal backend requires 12.3 or above).

Works fine for me on my M1 with 12.2.1.

Let us know how that goes! I'm getting an M1 Max MBP sometime in the next two weeks and already know the very first thing I install on it after booting is gonna be Blender. It's a rite of passage for any new computer I acquire!

The computer is an absolute beast, it compiles faster than my old desktop intel cpu and I just have M1 Pro or something..

Update:

Initial testing on one of my low poly scenes:

v3.1 cycles GPU — 35.5 seconds.

v3.0 cycles CPU — 90 seconds.

3.1 with support for Metal and GPU rendering boosted speed by about ~ 3x

One of the most marvelous hobbies.

There are few things more exciting about getting a new computer than getting to test how fast Blender runs on it!