Apple unveiled updates to its entire Mac laptop family all at once: MacBook Airs, MacBook Pros, and the new Retina Display Pro. What are the differences? Compare below

This year's lineup of Apple MacBooks remains split down the middle between thinner MacBook Airs and thicker MacBook Pros, both of which retain the same look as 2011 -- and, for that matter, 2010. Newly upgraded third-gen Intel processors, Nvidia graphics, and new ports like USB 3.0 are the chief new and notable additions, as well as price drops in the MacBook Air line.

A newcomer has also been added at the flagship high-end desktop-replacement level: the Retina Display 15-inch MacBook Pro, a completely redesigned laptop that functions as a fusion between beefier high-end systems and thinner laptops like the Air. At $2,199, it's priced to replace the 17-inch MacBook Pro