If Apple were to transition the MBP to its custom ARM CPUs, here are some potential (mostly overlapping) benefits we could see: The end of thermal issues. Possibly even MBPs that could handle sustained maximum loads. (Also consider that less heat is good for the long-term health of the machine... and our laps). Vastly more efficient Macs with much longer battery life (We would be going from 14nm chips to 7nm, or 5nm assuming they came out in late 2020. We would also likely see a mix of high performance and efficiency cores, as with Apple's A-series chips. Note that Macs would also probably age better due to the degradable batteries being cycled less quickly) Enough GPU performance to make Macs viable as gaming computers (I know it doesn't make sense to buy a Mac for this, but it would be a nice bonus. Consider that the 2018 iPad Pro already matches the graphics performance of an Xbox One S) More powerful Macs in general (The A12X processor already rivals or even exceeds the performance of the current Macbook Pros in many different areas. Imagine what Apple could do with more thermal headroom and a cooling system) Regular updates (Unlike Intel, TMSC has been consistently shrinking its node size and refining its manufacturing process) New features (Apple's custom silicon has enabled things like FaceID in iPhones and hardware acceleration for encryption in Macs. We would see more features like these over time) (Possibly) Cheaper Macs (The cost to manufacture each Mac, especially the ones with custom GPUs, would drop dramatically. Of course, it's unrealistic to think that Apple would pass on all the savings to the consumer, but they would likely pass on at least some of it. Tim Cook did say recently that he hopes to reduce the price of the Macbook Air in the future. I think this comment was hinting at Apple custom silicon) Some have expressed concern that people who run certain specific programs (mainly virtual machines) could be in trouble. There would also obviously have to be some sort of macOS software to accommodate third-party applications, which would likely see slower performance for a while until they were updated to run on ARM (note: this sort of thing has already been done in Windows). It's impossible to say how much of a problem these things would be, because we don't yet know how Apple would deal with it. However, the applications everyone uses the most (e.g. Chrome) would probably update rapidly. All that to say, I think the (massive) potential benefits of an ARM Macbook Pro far outweigh the potential drawbacks, and would be interested to hear your opinions.