I just found this article comparing a popular CAD app on the G4, G5 and Intel chips.
http://www.architosh.com/features/2004/g5-interview/2004-interv-g5nem-1.phtml
The article speaks for itself.
http://www.architosh.com/features/2004/g5-interview/2004-interv-g5nem-1.phtml
The article speaks for itself.