Seems like an A64 3000+ beats the P4 Extreme Edition, and the very cheap Sempron 3100+ beats a 3.2GHz P4.
http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2149&p=1
Not that Doom 3 is the only thing that matter.
http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2149&p=1
Not that Doom 3 is the only thing that matter.