Apple has nearly completed its shift away from Intel’s chipsets to those based on ARM and designed in-house. In addition to the MacBook Air and the MacBook Pro 13, the company has also released laptops with second-generation Apple silicon. However, the 27-inch iMac and the Mac Pro have yet to be replaced by Apple. A13 Bionic SoC is used in the Studio Display for features like “Hey Siri,” “Center Stage,” and “Spatial Audio,” and it’s possible that this could run a customized version of iOS 15.
Apple prototyped three 27-inch iMac models last year, according to MacRumors and forum member Amethyst. As far as we know, Apple repurposed the chassis from an old 27-inch iMac running Intel’s M1 chipset. A 27-inch iMac prototype has also been rumored to be built using the Apple M1 and the current 24-inch iMac’s form factor. After the second prototype was released, Apple is said to have created a third prototype that incorporated the design of the second with an Apple M1 Max processor and an XDR display.
For comparison, an XDR panel could boost the 27-inch iMac’s peak brightness to 1,600 nits and its contrast ratio to 1,000,000:1. Nevertheless, according to MacRumors, the company hasn’t built any new prototypes since November of 2021. As a result, it’s unclear whether or not Apple will release any of these. Based on Amethyst and MacRumors‘ timelines, it appears that Apple has an alternative plan. However, new MacBook Pro 14 and MacBook Pro 16 machines are expected to be released by Apple in early 2023.