The new 13-inch MacBook Pros have Intel Core-i processors that are faster than the older 12-inch model's Intel Core-m series they also support Thunderbolt 3 and come equipped with more USB-C ports. The new 13-inch Touch Bar model also has four (all Thunderbolt) but the 13-inch model without Touch Bar has only two! Besides a headphone jack, the new 15-inch model has four - and they're all of the Thunderbolt/USB-C variety. The previous generation had a total of 7: Two USB, two Thunderbolt 2 (in the form of Mini DisplayPort jacks), HDMI, SD, MagSafe and headphone. Perhaps the most significant one is that the new MacBook Pros have fewer ports than the older ones. The new models make some potentially difficult tradeoffs, however. (A 13-inch model without the Touch Bar was also announced.) And the Touch Bar is very cool: the mini touch strip contextually changes to icons in different apps and sliders, hot keys, and function buttons emerge on the fly as needed.
Considerably slimmer and lighter than their predecessors, the new models come equipped with larger Force Touch trackpads and Apple's new, dynamic Touch Bar. In October 2016, Apple updated its laptop portfolio, delivering an overdue refresh of its 13- and 15-inch MacBook Pros.