Anandtech swapped out a CoreDuo with a Core2Duo, if that's what you're talking about.
Didn't affect the battery life, and it was a better performer.
http://anandtech.com/cpuchipsets/showdoc.aspx?i=2808
VS. the P4, the Core, Core2, hell, even the Pentium M (which is a precursor to Core) beats that, clock for clock and watt for watt.
Didn't affect the battery life, and it was a better performer.
http://anandtech.com/cpuchipsets/showdoc.aspx?i=2808
VS. the P4, the Core, Core2, hell, even the Pentium M (which is a precursor to Core) beats that, clock for clock and watt for watt.