The Intel Core i7 quad-core processor provides more computing grunt for less battery consumption. The MacBook Pro is available with up to 2.7GHz, with an option for Turbo Boost speeds up to 3.7GHz.
Couple that with up to 16GB of 1600MHz RAM, and a 1GB Kepler Nvidia GeForce GT 650M graphics card, for a 60 percent graphical improvement on any notebook Apple has ever made. All storage is flash based, providing fast access to the 768GB drive with minimal battery consumption.