Processors remain the Core2Duos, with a 2.2GHz processor replacing the older 2.16GHz one. The 2.0GHz is also still available. In addition, the laptops now feature support for up to 4GB of memory. For those looking for more storage space, a 250GB 5400rpm HD is now an option across the board and goes for $150.
The MacBook Pro received an even smaller update, and now offers a BTO option for a 2.6GHz Core2Duo processor for an additional $250.