Kuo: Apple to launch several Mac notebooks and desktop computers with its own custom Arm-based processors in 2021; USB4 support will come to Macs in 2022
Apple plans to launch several Mac notebooks and desktop computers with its own custom designed Arm-based processors in 2021 …
Context & Ripple Effects
This March 2020 note lands mid-arc: Bloomberg had reported as far back as January 2018 that Apple was working on Mac laptops and a desktop with custom co-processors, and by February 2019 developers and Intel officials themselves expected the Arm transition. By June 2020, sources said Apple planned to announce the shift at WWDC, and Kuo's subsequent notes filled in the lineup — the first machines being a 13-inch MacBook Pro and a revamped 24-inch iMac, with a MacBook Air and larger Pro models following.
What this specific report adds is timing granularity plus a peripheral roadmap: several notebooks and desktops on custom Arm silicon across 2021, and USB4 support not until 2022 — meaning the I/O standard lags the processor switch by a full product cycle.
First-order effects
- Intel loses its last major PC-design-win customer for notebooks and desktops as Apple moves the entire Mac line onto its own chips starting in 2021, ending a supply relationship that has defined the Mac since 2006.
- Mac buyers face a split lineup during the transition year: new Arm-based models shipping alongside existing Intel machines, with USB4 connectivity absent until 2022.
Second-order effects
- Developers must rebuild and revalidate their Mac applications for Arm architecture or risk being left out of the new machines' launch window, echoing the Rosetta-style transition burden Apple imposed in prior architecture switches.
- Other PC makers face pressure to justify off-the-shelf silicon against Apple's integrated chip-and-software stack, pushing rivals toward their own custom or semi-custom processor designs.
Third-order effects
- If the full-lineup migration holds, the Mac converges architecturally with iPhone and iPad, enabling a single app binary across Apple's device families and shrinking the distinction between mobile and desktop software platforms.
- A successful transition would mark the point where the largest PC vendor designs its own processors end-to-end, structurally weakening merchant CPU vendors' pricing power across the premium laptop segment.
The trend: Personal computing is consolidating around vertically integrated custom silicon, with Apple's Mac transition serving as the template other device makers are now compelled to follow.