No more Intel CPUs.

I well recall the growing disaster of the IBM PC CPUs, the G3, G4 and G5.

Apple used these in their desktops and laptops through 2005, when Steve announced that Apple would be dropping the IBM CPUs in favor of Intel CPUs.

The best laptop at the time was the Apple Powerbook G3 which used the G3 PowerPC CPU. The problem was that as speeds increased with the G4 and G5 the CPUs ran hotter and hotter and Steve concluded that, as IBM was unwilling or unable to address the heat and high power consumption issues, a change was called for. Indeed at the time I recall using a G5 iMac and the machine could have doubled as a toaster. It revved up the fans at the slightest provocation and you just knew that its service life would be limited. I sold it and went to Hackintoshes when Apple switched to Intel. The Macs of the time were too expensive for my taste.

When the first Intel CPU Macs were introduced they came with a truly brilliant application named Rosetta. This ran invisibly and was an emulator which ensured that if you fired up a PowerPC application that it would run seamlessly under Intel’s architecture. That took years to develop, was invisible to the user, and it will be intriguing to see how Apple does like magic this time around.

The G5 iMac – the Apple toaster.

Now it seems that Apple is about to announce that it is switching from Intel to ARM CPUs in its laptops and desktops and the reasons appear similar – too much power consumption, too much heat and too slow a development cycle. And this time Apple will have total control over the CPU’s design, predicated on its years of expertise with the Axx series of CPUs in the iPhone and iPad. I can testify to the prowess of the A13 ARM CPU in my iPhone 11Pro which is a wonder and a great pleasure to use.

For the full story check out this Apple Insider article, which also includes details on the financial aspects of the switch. It is written by the estimable and always dependable Daniel Eran Dilger.