In line with a timeframe shared by analyst Ming-Chi Kuo last month, Bloomberg today reports that Apple is planning to release at least one Mac with its own custom-designed Arm-based processor by 2021.

The report claims that Apple is developing three Mac processors based on the A14 chip in upcoming iPhone 12 models. At least one of these processors will apparently be much faster than the A-series chips in the iPhone and iPad. Like the A14 chip, the Mac processors are expected to be manufactured by TSMC based on its 5nm process.

Apple's first Mac processors will have 12 cores, including eight high-performance cores and at least four energy-efficient cores, according to the report. Apple is said to be exploring Mac processors with more than 12 cores for further in the future, with the company already designing a second generation of Mac processors based on the A15 chip.

The first Arm-based Mac is likely to be a notebook, but analyst Ming-Chi Kuo expects at least one Mac desktop with an Apple processor next year too.