Comparison between iMac G5 2 GHz and Powermac G5 2GHz

Barefeats made a comparison between iMac G5 2 GHz and Powermac G5 dual 2 GHz. One processor of the Powermac has been disabled to make a fair comparison between the two machines.
The iMac did it well in terms of CPU performance and seemed not to be disadvantaged by its frontside bus, slower by a third.
On an other hand, the 9600 had difficulties against the Powermac's 9600XT. It is 30% slower in most of the tests.
http://www.barefeats.com/imacg52.html