Apple Reportedly 'Just Started Formal Development' of M4 MacBook Pro
Bloomberg's Mark Gurman today held a Q&A session focused on the Apple Car, in which he revealed that the vehicle's chip would have been equivalent to four M2 Ultra chips combined. He also said the vehicle had an underlying "safetyOS" system that was one part of the overall operating system, but he did not elaborate.

Gurman also briefly touched on a few other topics, including that Apple apparently "just started formal development" of a new MacBook Pro with an M4 chip. He did not provide any additional details about the chip, which has yet to be announced by Apple.
Apple announced the M1 chip for Macs in November 2020, followed by the M2 chip in June 2022 and the M3 chip towards the end of October 2023, so there has been around a year-and-a-half gap between each of the chips being introduced. If that pattern continues, the M4 chip would be released in the first half of 2025. However, a late 2024 release is also possible if the interval shrinks to one year.
Apple last updated the MacBook Pro lineup in October with M3, M3 Pro, and M3 Max chips. As part of that refresh, Apple discontinued the 13-inch MacBook Pro and replaced it with a new base model 14-inch MacBook Pro with the M3 chip. Apple has also updated the iMac and MacBook Air with the M3 chip, leaving the Mac mini, Mac Studio, and Mac Pro as the only current-generation Macs still equipped with the M2 family of chips.
|
Current Chip |
Last Updated |
Next Chip |
ETA |
| 13" MacBook Air |
M3 |
March 2024 |
M4 |
2025 |
| 15" MacBook Air |
M3 |
March 2024 |
M4 |
2025 |
| 14" MacBook Pro |
M3/M3 Pro/M3 Max |
October 2023 |
M4/M4 Pro/M4 Max |
Late 2024/2025 |
| 16" MacBook Pro |
M3 Pro/M3 Max |
October 2023 |
M4 Pro/M4 Max |
Late 2024/2025 |
| iMac |
M3 |
October 2023 |
M4 |
2025 |
| Mac Studio |
M2 Max/M2 Ultra |
June 2023 |
M3 Max/M3 Ultra |
2024 |
| Mac Pro |
M2 Ultra |
June 2023 |
M3 Ultra |
2024 |
| Mac mini |
M2/M2 Pro |
January 2023 |
M3/M3 Pro |
2024 |
Apple's chipmaking partner TSMC is expected to begin volume production of chips based on its 2nm process in the second half of 2025, so the M4 chip will likely remain 3nm like the M3 chip. However, the M4 chip will likely be manufactured with an enhanced version of TSMC's 3nm process for improved performance and power efficiency.
Last month, the Taiwanese publication Economic Daily News reported that the M4 chip will feature an upgraded Neural Engine with "significantly" more cores for artificial intelligence tasks, but no other specific details are known about the chip at this time.
Popular Stories
Apple hasn't updated the Apple TV 4K since 2022, and 2025 was supposed to be the year that we got a refresh. There were rumors suggesting Apple would release the new Apple TV before the end of 2025, but it looks like that's not going to happen now.
Subscribe to the MacRumors YouTube channel for more videos.
Bloomberg's Mark Gurman said several times across 2024 and 2025 that Apple would...
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another nine months, there are already plenty of rumors about the devices.
Below, we have recapped 12 features rumored for the iPhone 18 Pro models.
The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras
Under-screen Face ID
Front camera in...
Apple reportedly tested a version of the first-generation AirPods with bright, iPhone 5c-like colored charging cases.
The images, shared by the Apple leaker and prototype collector known as "Kosutami," claim to show first-generation AirPods prototypes with pink and yellow exterior casings. The interior of the charging case and the earbuds themselves remain white.
They seem close to some...
Earlier this month, Apple released iOS 26.2, following more than a month of beta testing. It is a big update, with many new features and changes for iPhones.
iOS 26.2 adds a Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. Below, we have highlighted a total of eight new features.
Liquid Glass Slider on Lock Screen
A new slider in the Lock...
Apple is rumored to be introducing a foldable iPhone in September 2026, and since it will bring the biggest form factor change since the iPhone was introduced in 2007, curiosity about the design is high. A 3D designer created an iPhone Fold design based on rumors, and we printed it out to see how it compares to Apple's current iPhones.
Subscribe to the MacRumors YouTube channel for more ...
Merry Christmas and Happy Holidays from MacRumors! News in the Apple world has unsurprisingly been relatively slow over the past week, but Apple's upcoming foldable iPhone managed to make its way back into the news, while we also shared updates on current and future Apple TV news.
iOS 26.3 will be bringing some new features, particularly for users in the EU, so we'll look for additional...
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps.
The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future.
To set up the...
2026 is almost upon us, and a new year is a good time to try out some new apps. We've rounded up 10 excellent Mac apps that are worth checking out.
Subscribe to the MacRumors YouTube channel for more videos.
Alt-Tab (Free) - Alt-Tab brings a Windows-style alt + tab thumbnail preview option to the Mac. You can see a full window preview of open apps and app windows.
One Thing (Free) -...