You'll also get a third-gen Core i5 processor with Intel HD Graphics 4000 (no more specifics on that just yet), 4GB of RAM, a Mini DisplayPort that can output a 2560 x 1440 resolution, a full-size USB 3.0 port and, of course, Windows 8 Pro with support for all your traditional desktop applications.
The major differences you'll want to consider (aside from design) are the larger size, and the fact that the 14z makes room for an optical drive and up to 8GB of RAM.