a 2.16 core duo is pretty much on par witha 3.4-3.6 Ghz p4
More like a 3.4GHz Pentium D (dual core P4). Even per core, the Core Duo/Core Solo hold their own.And...the design of it is based on the Pentium M, which is based on the Pentium 3. (Which is based on the Pentium Pro, but that's another story.)