RE: Then they have the packages businesses run on their macs ready . . . Do you think Apple makes most business software that businesses use? Nope.
Granted: I might have been clearer who "they" are.
Apple will make sure that for the businesses Apple cares about, that the 3rd parties who make the software those businesses need, will support the new architecture properly.
E.g. Apple already said Apple is working with Adobe to bing CC to ARM natively.
RE:
So anything they release is likely to either have extreme long battery life, extreme light weight, or so much more powerful than any currentm, that everybody will forget about intel CPUs. . . . This sounds like it originated from a iPad fan, desktops and workstation don't work off batteries, either a laptop or desktop won't worry about small file size (lightness), and I have yet to see a program made so much more powerful just because of RISC code efficiency.
FWIW: I'm not a fan of the iPad. Phone or mac: no need for stuff in between for me.
The ARM has a better heat vs performance ratio than anything Intel makes for the mac.
They've proven that already. And use that as their rationale to switch
(and probably because Intel dropped the ball too often)
For laptops (they sell more of those than desktops):
Apple, designing the CPUs for their machine has choices:
- either they can use less power (and less heat) for the same sized battery and have something that works like it does now, just go much longer on a single charge (unlikely IMHO, MBPs run long enough for practical use scenarios)
- either then can use the same power than the Intel CPUs do, for the same sized battery and get something dramatically more performant in the same size and weight
- either they can pick the same performance than they get now from an Intel CPU, and use a smaller battery than they now do and get something as performant as they do now, but with a lot less battery and hence size and weight to it and still make it last as long as they do now.
Or they can go somewhere in between (most likely they'll go for that).
For an MacBook Air: surely they'll pick less battery and a bit more performance: that way it's lighter, smaller, and more performant - easy to market.
For a top of the line MBP: most liely same size or slightly smaller than now, and a lot more performance out of it: that way they'll show off how performant the ARM is for a given budget in power it can use.
For Desktops, power use is still important as it is restricting what you need to design as a thermal solution in the box. At the same time Apple seeks a greener image than they have at times, so using less power might also be important to them.
I can easily see Apple design the new iMac thinner than ever before, with much more passive cooling and still more performant. Just think of something thinner and smaller than the XDR display that's a complete iMac.
(or a huge iPad in form factor - as was rumoured already)
For a mac mini or so, they can easily keep the form factor and add more performance to it if they want to go that way.
For a Mac Pro ... big question is how far they will be able to push the ARM architecture in one generation. The current chassis is designed to allow for a huge budget in power to the CPU, either they keep using such a budget in a massively parallel CPU (if they can pull that off), or wether they won't need that much cooling anymore.
It's likely to be the last machine to change to ARM unless Apple wants to prove beyond any doubt that they can outshine Intel completely in every single aspect from the getgo (I doubt they'll do the hardest stuff first, there's too much low hanging fruit in the mass markets they're more likely to be (financially) interested in first.
Time will tell what'll happen with the MP and what they do with the other machines in terms of battery capacity vs. performance in real shipping production machines will give an indication before they get to redesign these machines.