We check out the Space Gray specification bump and see what this year's MacBook has to offer:

12-inch 2304 × 1440 (226 ppi) IPS Retina Display

1.2 GHz dual-core Intel Core m3 processor (Turbo Boost up to 3.0 GHz)

8 GB of 1866 MHz LPDDR3 SDRAM

256 GB PCIe-based SSD

Intel HD Graphics 615

802.11ac Wi-Fi and Bluetooth 4.2

A single USB-C port and 3.5 mm headphone jack