I'm sorta wondering when Apple starts building their own lightweight high-performance low-power ARM-based servers for their server farms. They could literally make one that works exactly how they want. And be increasingly less beholden to Azure/Amazon for services.
Apple uses Azure/Amazon because they've done the math and its more economical than building & maintaining more of their own server farms and easier to scale to meet demand. Apple make their own hardware to sell as part of a MacOS/iOS/Services package - and there's no market for a Mac server (beyond a handful of XServe nostalgics) because there's no advantage to using MacOS on a server (a major selling point of the XServe was low licensing costs c.f. Windows Server, NetWare etc. which all charged per-user licenses - Linux and the rise of web-related server tech killed that).
Not that ARM servers don't make sense - and most server-side software doesn't care about what CPU it is running on - but Amazon and others are already looking at ARM servers, and
is further down that road than Apple - if Apple want ARM-bases servers they can just hire them.
Apple sacrifices performance for thinness and aesthetics, so getting hyped for >3GHz capabilities is pointless because they are going to be running far less than that (even if you run something that needs it).
ARM can deliver more performance (whether it's more GHz or more cores) for the
same power consumption/heat output as Intel. Put an Intel chip in an iPhone with a tiny, passive cooling system and try and run it at full turbo boost and it will overheat and throttle far sooner. Put an A-series chip in a MBP, that has fans and much better cooling, and it will be in thermal heaven and run for far longer at full boost than a comparable Intel chip.
Now, Apple get to decide where to strike the balance by designing faster A-series chips for the MBP
or designing ever-thinner MBPs to put them in. We'll see which way they go - but the 16" MBP looks like something of a back-track from the "thinner is better" ethos so, maybe, they've got their fingers burned (literally) and have learnt the lesson.
The loss of x86 compatibility may very well mark Apple’s regression into irrelevance for general computing, like it was during the PPC era.
Let's fix that for you:
The loss of x86 Windows compatibility may very well mark Apple’s regression into irrelevance for general computing be an inconvenience to some users, like it was not during the PPC era.
Jobs had already turned the Mac around with the iMac, OS X and the iPod "halo effect" long before the Intel switch. Interoperability was improving with the demise of things like Netware and proprietary email systems in favour of more open standards. Heck, Macs were now running
industry standard Unix!
The switch happened because Motorola/IBM were too slow coming through with the new chips that Apple needed (...a successor to the G5 for the PowerMac, a mobile G5 for the PowerBook) whereas Intel had just done a major U-turn in dropping the power-guzzling Pentium 4 space heater in favour of the new, relatively low-power Core chips.... and, boy, did the Interwebs think that the switch to Intel was gouing to be the end of the Mac...
Let's run through that again: existing CPU maker not delivering the chips Apple needed on time, rival CPU maker offering a new, low-power alternative... sound familiar?
Except, this time, the rival CPU maker isn't a "maker" but licenses designs on a pick'n'mix basis and Apple
already have experience of using this to make their own bespoke systems-on-a-chip...
Not that the ability to virtualise or dual-boot x86 operating systems wasn't an advantage that undoubtedly helped shift Macs, but it wasn't the master plan - with Bootcamp only added after hackers showed it was possible and virtualisation a third-party option that showed up a year or so after the switch...
Thing is, if by (say) 2022 when it becomes a real issue, the Mac market is still reliant on the ability to run Windows (...and its perfectly feasible that running ARM Windows, which in turn can run x86-32 apps under emulation will be possible) then, frankly, MacOS
is irrelevant for general computing.