There's some Core 2 Duo-replacements in the 2 core i5s and 7s. http://www.anandtech.com/show/3876/intels-core-2011-mobile-roadmap-revealed-sandy-bridge-part-ii

There's some Core 2 Duo-replacements in the 2 core i5s and 7s. http://www.anandtech.com/show/3876/intels-core-2011-mobile-roadmap-revealed-sandy-bridge-part-ii http://www.anandtech.com/show/3876/intels-core-2011-mobile-r... Clocks are 2.2GHz to 2.7GHz, all hyper-threaded. Dual and quad-core. Quite interesting stuff, though I might be annoyed if I bought an i7 laptop then discovered it wasn't a quad-core.