As expected, iFixit has done a teardown of two of Apple’s three new M1-based Macs: the MacBook Air and the 2-port, 13-inch MacBook Pro. What they found is somehow both surprising and not: almost nothing has changed in the laptops apart from the inclusion of the M1 chip and directly related changes.
The biggest change is definitely the omission of a fan in the MacBook Air. iFixit notes that given the Intel MacBook Air’s history of overheating in some cases, it speaks volumes about the efficiency of the M1 that so far it seems the Air gets on just fine without that fan now. Also missing: the T2 chip, which we noted in our Mac mini review has been replaced completely by the M1 in all these new Macs.
The 13-inch MacBook Pro is even more similar to its predecessor. The T2 chip is also gone, but the laptop retains the exact same fan and cooling system, with no differences whatsoever. Reviews of the 13-inch MacBook Pro claim that the fan doesn’t spin up as often as it used to, but iFixit concludes here that that’s because of the shift from an Intel chip to the M1, not because of an improved cooling system. The fans on the Intel and M1 Pro are interchangeable.
What’s not interchangeable are a whole bunch of parts in the Air and parts in the Pro. iFixit laments that the similar silicon between the two machines could have presented an opportunity to make repairs easier by making it possible to use parts from one to fix the other, but that seems not to be the case.
And in general, the performance and efficiency gains of the M1 over the prior models are counterbalanced by the fact that user-serviceability and repairability are not moving in a more open direction, because the unified memory architecture of the M1 suggests that Apple isn’t planning to make RAM upgradeable or replaceable any time soon.
iFixit hasn’t given the laptops a repairability score yet, but those two notes suggest the scores wouldn’t be higher than those given to previous models (those machines didn’t have upgradeable RAM, either.)
For more shots of these laptops’ insides and some additional insights, read iFixit’s full teardown post.
Listing image by Samuel Axon