This notebook also has an integrated 720p FaceTime HD webcam, a thin, backlit “second generation” butterfly mechanism keyboard with an integrated new “Touch Bar” that replaces the traditional function keys with a touch-sensitive control that adapts for different applications and provides Touch ID login support, and a gigantic “Force Touch” trackpad. Additionally, it has a high-resolution LED-backlit 13.3′′ widescreen 2560×1600 (227 ppi, 500 nits) “Retina” display, and a integrated battery that provides an Apple estimated 10 hours of runtime. This notebook is offered in either silver colored aluminum or a darker “Space Gray” colored aluminum housing (but not other colors) and weighs just a bit more than 3 pounds (1.37 kg). Connectivity includes 802.11ac Wi-Fi, Bluetooth 4.2, four “Thunderbolt 3” ports (USB-C connector), and a 3.5 mm headphone jack. Compared to its predecessor, this model has a completely different external housing that is thinner, is available in another color option, and has the aforementioned “Touch Bar” in addition to a larger trackpad, but swaps a variety of ports for just four Thunderbolt 3 ports and a 3.5 mm headphone jack. Internally, it has a more advanced processor and architecture, as well as a more advanced graphics processor and better speakers, but reduced battery life. Processor Type Core i5 (I5-6267U) 2.9GHz This model is powered by a 14 nm, 64-bit “Sixth Generation” Intel Mobile Core i5 “Skylake” (I5-6267U) processor which includes two independent processor “cores” on a single silicon chip. Each core has a dedicated 256k level 2 cache, shares 4 MB of level 3 cache, and has an integrated memory controller (dual channel).