@joergQuote:
Even if the Mirari may be one of the best systems for AmigaOS 4.x, it's not for MorphOS.
A 970 (G5) Mac is probably still much faster.
The Mirari will not be faster than the X5000 for AOS4.
The project's goal was not to create the fastest machine.
Rather, it was important for the authors to create a relatively modern PPC motherboard with an open U-Boot that is compatible with various PPC operating systems.
This opens the door for MorphOS to the closed hardware ecosystem associated with Apple, on which it is mainly based.
The latest versions of Apple's G4 and G5 hardware were released 20 years ago.
The future of OS4 is unknown.