For the benefit of others: I bought the new MacBook Pro M1 16" (10-Core CPU 16-Core GPU 16GB Unified Memory 512GB SSD), to replace my 2019/20 base MBP 16".
In short, my Archicad 23 solo UK runs 5-20% slower on the new mac in practically all common operations. 3D navigation shows large square artefacts where surfaces align and is noticeably jerkier compared to the fluent performance on the previous Mac.
On top of that, Monterey stubbornly insists Twinmotion is malware and also returns crash messages each time I close Archicad. (On both the new and the previous Mac.)
In AC25 int trial, no Twinmotion or closing crash message. Speed not tested, though safe to assume it will be also slower.
My advice: don't upgrade. I will review when AC releases native M1 version. (If they do.)
Besides, the new Mac looks and feels cheap. My wife thought it looked like an old Acer. The top menu bar is larger and takes up more screen space, for no reason, as the notch is smaller. You still need to carry dongles as no USB-A. Keyboard is chunky. Thanks goodness that the control strip is gone though! Overall, Apple is finally close to having repaired the disastrous damage done by Jony Ive to functionality, but, losing its design edge at the same time.
I'm returning the new Mac today and installing BigSur back on my old laptop.
Jiri, registered architect