Macbook Air 13.3 -inch (Retina, Gold) 1.6GHZ Dual Core i5 (Late 2018). - Apple MREE2LL/A. The Apple MacBook Air "Core i5" 1.6 13-Inch (Retina, Late 2018) model features a 14-nm "Amber Lake Y" 1.6 GHz Intel "Core i5" processor (8210Y) with two independent processor "cores" on a single chip, a 4 MB shared level 3 cache, customize your memory and hard drive, and an "integrated" Intel UHD Graphics 617 graphics processor that shares system memory.