Since the new MacBook Air with the Retina display can really only be setup with one processor option, a 1.6Ghz dual-core eighth-generation Intel Core i5 processor, Apple may have actually prototyped a faster version too.
A brand new benchmark result on Geekbench last week had surfaced via Slashleaks for an unreleased Mac, codenamed AAPJ140K1,1, all powered by a dual-core eighth-generation Core i7 CPU with a base clock speed of 1.8Ghz. The exact same model is not listed, but it’s logic board has the same part number as the new MacBook Air.
And for even more further evidence, the benchmark results are listed for 16GB’s of 2133 MHz LPDDR3 RAM, which is an existing upgrade option for the newest MacBook AIr. Also, the Core i7-8510Y appears to be a part of Intel’s lower powered Amber Lake lineup, as is the Core i5 in the newest MacBook Air, though it’s not actually listed on Intel’s ARK database.
The apparent MacBook Air with the newest Core i7 chip also has a multi-core score of 8,553 on Geekbench, which would make it roughly 8.5% faster than the average multi-core score of the existing option with a Core i5.
Also, the Geekbench founder John Poole had told MacRumors that nothing about the benchmark results looked fake to him pretty much, though there is a possibility that this may not be entirely ruled out. If it’s real, though, it has been suggested that a 2018 MacBook Air with a Core i7 exists within Apple’s labs, though it obviously has not been released to the public yet.
It’s also quite reasonable to predict that Apple’s own prototypes and versions of it’s products and not all of them see the light of day. Though why the MacBook Air with a Core i7 was not released is anyone’s guess, maybe it just ran too hot, or Apple just elected to keep the dual-core Core i7 as a MacBook Pro option instead, or something else possibly…
So if Apple does plan to add the Core i7 as an upgrade option for the new MacBook Air, it’s hard to envision that it would do so anytime soon considering the notebook was just refreshed basically. Apple has also bumped up the MacBook Air’s CPU up to mid-product-cycle in the past, though, so there is some precedence for this brand new move.
All in all however, there is a possibility that a new MacBook Air with a Core i7 in the wild that Apple had decided not to ship or may ship at a later date.