The MacBook (12-inch, 1.2GHz Intel Core M, Early 2015)features a 14-nm 1.2 GHz Intel Core M processor (M-5Y51) with two independent processor cores on a single chip. Apple boasts that the notebook additionally uses a new “tiered” battery design to maximize space inside the chassis and delivers 9-10 hours of runtime depending on use. It also packs a 480p FaceTime webcam, a backlit full-size keyboard with a thin “butterfly mechanism” keyboard design, a clever haptic-capable “Force Touch” trackpad, and a 12-inch0 TFT LED-backlit active-matrix “Retina” display (2304 x 1440 native resolution at 226 ppi). These elements are housed in a wafer thin (0.14-0.52 inch), 2.03 pound, aluminum case. The MacBook (12-inch, 1.1GHz Intel Core M, Early 2015) features a 14-nm 1.1 GHz Intel Core M processor (M-5Y31) with two independent processor cores on a single chip, a 4 MB level 3 cache, an integrated Intel HD Graphics 5300 graphics processor that shares system memory, 8 GB of onboard 1600 MHz LPDDR3 SDRAM (that cannot be upgraded), and 256 GB of onboard PCIe-based flash storage (that also cannot be upgraded). Like the MacBook Air, this device runs OS X rather than the iPad’s iOS. It is equipped with just one USB-C port for connectivity and a headphone jack. On the other hand, the MacBook 8,1 (12-Inch, Early 2015) is lighter and thinner than the smallest models from the MacBook Air series.

Besides, the processor and graphic performance are inferior to the MacBook Air. In the Apple’s MacBook product line, the MacBook sits below the MacBook Pro in terms of specifications.

1.3 Apple Model Numbers, Discontinuation, Price.

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