the problem is that mac mini g4 1.5 with OS4 beta could be faster that x1000 
Also might not be. You can't draw meaningful conclusions from a small number of selective benchmarks. For instance in the thread I started at
http://www.amiga.org/forums/showthread.php?t=60612, the X1000 is over 300-400% faster than the Mac Mini. You'd have to run *lots* of benchmarks to draw more definite conclusions.
Also bear in mind that these benchmarking threads should be taken with an EU salt mountain since the system is nowhere near optimized yet.
Taken from
http://blog.hyperion-entertainment.biz/"Given the rushed nature of this AmigaOS 4.1 Update 5 release, there are still some bugs and a few rough edges. Remember, the X1000 was originally planned to be released only with AmigaOS 4.2 installed. Also please keep in mind most of the X1000 system is still unoptimized. This is truly the most powerful Amiga Operating System hardware platform ever released and we plan to utilize this hardware to its full potential in due course."
Wait till it has been optimized and then redo these benchmarks.
