The 13-inch MacBook Pro sans Retina display is a holdover from Apple's 2012 line. The system incorporates a 2.5 GHz Intel i5 "Ivy Bridge" microprocessor, 4 GB RAM and a 500 GB internal hard disk drive. It's also the very last Macintosh computer to sport an internal CD/DVD "SuperDrive;" all other Macs have eschewed internal optical media and require an external USB SuperDrive (or another optical drive) in order to work with CDs or DVDs. It's priced at $1,099.
Apple didn't update the 15-in Retina MacBook Pro when it did the a couple months ago, but today balance has been restored to the lineup. Let's compare the 15-in and 13-in versions of the MacBook Pro with Retina Display.
In doing so, the 13-inch MacBook Pro with Retina Display gets all of the chassis improvements that were first introduced with the 15-inch model this summer. Apple ditched the optical drive, slimmed up the notebook, and integrated Intel's 22nm Ivy Bridge silicon. Better speakers, a larger battery, USB 3.0, and an extra Thunderbolt port are all a part of the next-gen package.