[sliken]

Well trick is, decent iGPUs need better than 128 bit wide DDR5 @ 5200 Mhz. So apple's solution is a small CPU package with ram on board that lets them do 128, 256, 512, and 1024 bit wide memory interfaces. All but the 1024 bit wide are low power enough to be in thin laptops.

Considering even the Ryzen 7950x or Intel I9 for desktops are 128 bit wide that's a pretty huge difference. You have to move up to Epyc, Threadripper, Xeon, or a Workstation CPU to get more than 128 bits, and those aren't available on laptops.

So I'm going to have to disagree with the "Apple sacrificed upgradability in the name of making more money".