Apple Testing M3 Max Chip With 16-Core CPU and 40-Core GPU
Apple is testing the next-generation M3 Max chip, according to Bloomberg's Mark Gurman. The Apple silicon chip will be a replacement for the M2 Max, and it is set to be used in new MacBook Pro models next year.

Signs of the chip were found by a third-party Mac developer in test logs, and it appears to feature a 40-core GPU and a 16-core CPU with 12 high performance cores and four efficiency cores. Comparatively, the current M2 Max chip features a 12-core CPU and a 38-core GPU. The test machine also includes 48GB memory, but there will likely be higher upgrade options available as the current MacBook Pro supports up to 96GB memory.
Apple's M3 Max chip is expected to be built on a new 3-nanometer process, resulting in speed and efficiency improvements compared to the M2 Max chip. Apple is testing the chip in an unreleased high-end MacBook Pro that's codenamed "J514."
The M3 Max will be the higher-end chip in a trio that also includes the M3 and the M3 Pro. The M3 chip will include an 8-core CPU and up to a 10-core GPU, while the M3 Pro will feature a 12-core CPU and 18-core GPU.
Apple is expected to release the first M3 Macs in October, but will likely focus on machines that use the standard M3 chip, such as the 13-inch MacBook Pro and the MacBook Air models. 14 and 16-inch MacBook Pro models that include the M3 Max chip are expected to come out in 2024.
Popular Stories
In his Power On newsletter today, Bloomberg's Mark Gurman said Apple will have a three-day stretch of product announcements from Monday, March 2 through Wednesday, March 4. In total, he expects Apple to introduce "at least five products."
Subscribe to the MacRumors YouTube channel for more videos.
A week ago, Apple invited selected journalists and content creators to an "Apple Experience" in...
Apple's software engineers are testing iOS 26.3.1, according to the MacRumors visitor logs, which have been a reliable indicator of upcoming iOS versions.
iOS 26.3.1 should be a minor update that fixes bugs and/or security vulnerabilities, and it will likely be released within the next two weeks.
Last month, Apple released iOS 26.2.1 with bug fixes and support for the second-generation...
Apple is expected to launch a new foldable iPhone this year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that Apple will release its first foldable device in 2026.
Subscribe to the MacRumors YouTube channel for more videos.
Below, we've collated an updated set of key details that have been leaked about ...
The special new color that Apple is considering for the iPhone 18 Pro and iPhone 18 Pro Max this year is red, according to Bloomberg's Mark Gurman.
Specifically, he said that Apple is testing a "deep red" finish for the two devices.
If this rumor materializes, it would be the first time that the Pro and Pro Max models ever come in red, and the iPhone 18 Pro models would be the first...
Apple has been developing a more affordable version of the MacBook, and it's rumored to be launching in under two weeks. This is going to be one of Apple's most unique Macs, because there hasn't really been anything quite like it before.
We've rounded up everything we know about the low-cost MacBook ahead of its March debut.
Design
Rumors about the MacBook's design make it sound a lot...