So, I ran xbench on my Mac Mini and compared my results against the xbench's online database. Under the Mac Mini section were computers listed with G5 processors and 1.5GB and 2GB of RAM. I am guessing that these systems were incorrectly identified. However, is it possible that there are some people doing crazy things with their minis, such as putting in G5 processors?
Here is an example:
http://db.xbench.com/merge.xhtml?doc1=151018
Here is an example:
http://db.xbench.com/merge.xhtml?doc1=151018