'M1 Pro' and 'M1 Max' Chip Names Appear in App Log Ahead of Monday's Apple Event

A little more than 24 hours until Apple's much-awaited launch of redesigned 14-inch and 16-inch MacBook Pros, new evidence has emerged suggesting that Apple may be calling the chips that power the upcoming Macs "M1 Pro" and "M1 Max."

new m1 chip
The new MacBook Pros will be powered by the next generation of Apple silicon, featuring up to 10 CPU cores, with eight high-performance and two energy-efficient cores. In graphics, Apple is expected to include two variations of its upcoming chip, including 16 and 32 GPU cores.

There's been an ongoing debate regarding the name of Apple's next-generation Mac silicon. Some have speculated that the chip may be called "M1X," while others believe it could jump to "M2" to signify the more considerable leap in performance compared to the M1. However, in a new twist to the plot, the new chips could be called "‌M1 Pro‌" and "‌M1 Max‌."

In his latest Power On newsletter, Bloomberg's Mark Gurman notes that a Mac developer informed him that in their app logs, the chip names "‌M1 Pro‌" and "‌M1 Max‌" have appeared, alongside the same screen resolutions for the upcoming MacBook Pros that MacRumors discovered in the macOS Monterey beta last month. While the names have appeared in app logs, Gurman says Apple may ultimately not take that potentially confusing naming approach.

The aforementioned developer tells me that new MacBook Pro chips have appeared in logs under the names "M1 Pro" and "M1 Max." I'm not saying Apple will take that direction with its actual marketing names, but that's another—albeit more confusing—possibility. We'll know for sure in just about 24 hours.

In the past, Apple has added "X" and "Z" to its chip names to represent upgraded iterations of the baseline chip. For example, with the 2018 iPad Pro, Apple labeled the chip "A12X," based on the A12 chip for the iPhone XS.

Apple is widely expected to be introducing the new MacBook Pros during its digital event on Monday, with the tagline "Unleashed." Alongside the new MacBook Pros, Apple could be planning to announce a high-end Mac mini, the third-generation AirPods, and could surprise with a larger Apple silicon iMac, although that is less likely. MacRumors will have in-depth coverage of Apple's event, including a live blog on our website and tweets via @MacRumorsLive on Twitter.

Related Roundup: MacBook Pro
Buyer's Guide: MacBook Pro (Caution)
Related Forum: MacBook Pro

Popular Stories

Home Hub Command Center with Dome Base Feature

Apple Working on All-New Operating System

Saturday August 16, 2025 6:45 am PDT by
Apple is developing an all-new operating system codenamed "Charismatic," according to Bloomberg's Mark Gurman. Apple smart home hub concept This is likely Apple's long-rumored "homeOS" operating system. In a report this week, Gurman said both Apple's rumored smart home hub in 2026 and tabletop robot in 2027 will run the new operating system. He said the software platform will blend...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro Max's Internal Design With Metal Battery Allegedly Leaks

Friday August 15, 2025 9:13 am PDT by
Alleged images of the iPhone 17 Pro Max's internal design have surfaced, offering a potential look inside the device before it is announced by Apple next month. The images were shared by the account "yeux1122" this week, in a blog post on the Korean platform Naver. The account aggregates Apple rumors and leaks, so it is likely not the original source of the images, and it is unclear if they...
apple beta 26 lineup

Mark Gurman Responds to Last Week's Apple Device Leaks

Sunday August 17, 2025 7:03 am PDT by
Last week, Apple released and then pulled a software tool that accidentally contained identifiers for many unreleased devices and chips, according to MacRumors contributor Aaron Perris. His findings included new models of the Studio Display, Apple TV, Apple Watches, Apple Vision Pro, iPad mini, HomePod mini, and more. Here is what was uncovered in the file, according to MacRumors contributor ...
Apple Watch Ultra 2 Complications

Apple Watch Reportedly Set to Receive 'Significant Redesign' Next Year

Friday August 15, 2025 1:31 pm PDT by
At least one new Apple Watch model launching next year will feature a "significant redesign," according to Taiwanese supply chain publication DigiTimes. In a paywalled report this week, citing supply chain insiders, DigiTimes claimed that a high-end 2026 Apple Watch model will feature "exterior design" changes, including but not limited to "eight sensors arranged in a ring pattern visible...
Golden Apple Logo

Every Apple Secret That Leaked Wednesday

Thursday August 14, 2025 4:13 am PDT by
Apple made a major slip Wednesday when it accidentally included hardware identifiers in software code linking to numerous unannounced products. The leaked information provided MacRumors with concrete evidence of Apple's hardware development across multiple product categories. Here's everything that was confirmed through the code discoveries: New HomePod mini with updated chip – New...
iOS 26 Feature

Here's Everything New in iOS 26 Beta 7

Monday August 18, 2025 11:59 am PDT by
The seventh developer beta of iOS 26 is now available. While we are now in the later stages of the iOS 26 beta cycle, there are still some changes. Below, we outline everything new that we have found in iOS 26 beta 7 so far. Redesigned Blood Oxygen Feature The seventh developer betas of iOS 26 and watchOS 26 include a redesigned Blood Oxygen feature on Apple Watch Series 9, Apple Watch ...
iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

Alleged iPhone 17 Pro Chassis Offers First Look at All-Aluminum Body

Thursday August 14, 2025 3:40 am PDT by
An alleged iPhone 17 Pro production leak may provide a first look at the device's milled all-aluminum chassis, which this year includes the camera bump – in contrast to last year's iPhone 16 Pro model that features a glass camera module attached to an all-glass back panel. Originally shared by leaker Majin Bu, the image below could be of a moulding, but it still lines up with rumors that...
iPhone 16

No iPhone 18 in 2026, Another Report Claims

Monday August 18, 2025 7:34 am PDT by
Apple is expected to delay the launch of its base iPhone 18 model until spring 2027, marking a major shift in the company's long-established release cycle, according to South Korea's ETNews. The report claims that Apple has informed some of its suppliers that the iPhone 18 will not be part of the September 2026 iPhone lineup. Instead, the company will unveil only higher-end models in the...

Top Rated Comments

cvj23 Avatar
50 months ago
The Notchbook Pro Max, charger not included.
Score: 79 Votes (Like | Disagree)
xxray Avatar
50 months ago
No M1 Pro Max? :(
Score: 55 Votes (Like | Disagree)
error Avatar
50 months ago
I want M1 Extreme.
Score: 51 Votes (Like | Disagree)
dantracht Avatar
50 months ago
A Macbook Pro with a M1 Pro Chip? That's a lot of pro.
Score: 40 Votes (Like | Disagree)
sublunar Avatar
50 months ago
Could be differentiating 16 and 32 GPU cores?
Score: 19 Votes (Like | Disagree)
JetLaw Avatar
50 months ago
I'm gonna pay the extra $200 to upgrade to the M1 Ludicrous.
Score: 18 Votes (Like | Disagree)