MacBook ARK | Intel® Core™ M-5Y31 Processor (4M Cache, up to 2.40 GHz) ARK | Intel® Core™ M-5Y51 Processor (4M Cache, up to 2.60 GHz) ARK | Intel® Core™ M-5Y71 Processor (4M Cache, up to 2.90 GHz) MacBook Air ARK | Intel® Core™ i5-5250U Pr…