The Apple MacBook Air "Core i5" 1.8 13" (Mid-2012/USB 3.0) features a 22-nm "Ivy Bridge" 1.8 GHz Intel "Core i5" processor (3427U) with two independent processor "cores" on a single chip, a 3 MB shared level 3 cache, 4 GB of onboard 1600 MHz DDR3L SDRAM (which cannot be upgraded after purchase), 128 GB อ่านเพิ่มเติม