Since 2020, Apple has been working to transition away from Intel chips, instead using its own Apple silicon chips. Apple's custom chips are Arm-based and are similar to the A-series chips used in iPhones and iPads, and Apple unveiled the first Apple silicon Macs in November 2020. The second Apple silicon Macs came in 2021, and now the MacBook Air, MacBook Pro, Mac mini, Mac Studio, and iMac lineups all feature machines with M-series chips.

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This guide covers everything we know about Apple silicon, Apple's plans to transition the entire Mac lineup away from Intel chips, and Apple's efforts to make it easy for developers to design apps for the new Arm-based Macs.

Apple Silicon Mac Lineup

Apple's first Macs with Apple silicon chips, the late 2020 ‌MacBook Air‌, MacBook Pro, ‌Mac mini‌ and the 2021 iPad Pro and ‌iMac‌ all use the M1 chip, which is Apple's first custom-designed Arm-based chip for Mac. The 2021 14-inch and 16-inch MacBook Pro models use the M1 Pro and M1 Max, upgraded variants of the ‌M1‌ that are more powerful, and the ‌Mac Studio‌ uses the M1 Ultra, which is twice as powerful as the ‌M1 Max‌.

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M-series chips feature Apple's first "System on a Chip" design for the Mac, and it integrates several different components including the CPU, GPU, unified memory architecture (RAM), Neural Engine, Secure Enclave, SSD controller, image signal processor, encode/decode engines, Thunderbolt controller with USB 4 support, and more, all of which power the different features in the Mac.

The ‌M1‌, ‌M1 Pro‌, ‌M1 Max‌, and ‌M1 Ultra‌ chips are the most powerful chips that Apple has created to date, handily beating out much higher-end Intel chips.

The ‌M1‌ features an 8-core CPU with four high-performance cores and four high-efficiency cores and an 8-core GPU. The ‌M1 Pro‌ features a 10-core CPU with eight high performance cores and two high efficiency cores along with a 16-core GPU (though there is an entry-level version with 8-core CPU and 14-core GPU).

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Apple's high-end ‌M1 Max‌ features a 10-core CPU (the same as the CPU for the ‌M1 Pro‌) and a 32-core GPU for improved graphics performance. The high=performance cores in the M-series chips are designed to offer the best performance for power-intensive single-threaded tasks, while the high-efficiency cores are available for tasks that don't require as much power, such as web browsing. This split between high power and high efficiency is what gives the Apple silicon Macs incredible battery life.

The ‌M1 Ultra‌ offers twice the performance of the ‌M1 Max‌ with up to a 20-core CPU and up to a 64-core GPU.

All of the Apple silicon chips have unified memory that's shared between all chip components to eliminate swapping and improve performance, plus a 16-core Neural Engine and other add-ons like an image signal processor, Secure Enclave for secure booting and Touch ID, and more.

For more details on the M1 chip, make sure to check out our full M1 guide. We also have dedicated guides for the M1 Pro chip and the M1 Max chip.

Why Apple Made the Switch

Apple is adopting its own Apple silicon chips to make better Macs. Apple's chips bring a whole new level of performance with more powerful Macs that are also more energy-efficient. Apple says that its advanced power management capabilities allow for maximized performance paired with better than ever battery life of up to 21 hours. That's double the battery life of some prior-generation Intel-based Macs.

Apple silicon Advantage

Apple has years of experience with power-efficient chip design thanks to its work on the iPhone, iPad, and Apple Watch, all of which use custom-designed chips developed by Apple engineers. Apple has made huge gains in processor performance over the years, and its chips are now more than powerful enough to be used in Macs.

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Apple aimed to deliver the highest possible performance with the lowest power consumption, a goal that its expertise made it well-suited to achieve. Better performance and efficiency were Apple's main goals, but there are other reasons that the company decided to transition away from Intel, and that includes all of the custom technologies that are built into Apple silicon to further boost the Mac's capabilities and make it stand out from the competition.

Deep integration between software and hardware has always made iPhones stand out from other smartphones, and the same is true for the Mac. Apple's custom chips provide best-in-class security with the Secure Enclave and high-performance graphics capabilities for pro apps and games, but the true performance gains remain to be seen.

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Apple silicon chips are built with Neural Engines and Machine Learning Accelerators to make Macs ideal platforms for machine learning. Other technologies include a high-quality camera processor, performance controller, Secure Enclave and ‌Touch ID‌, high-performance DRAM, unified memory, and cryptography acceleration.

Ditching Intel

Many of Apple's prior Macs used x86 chips from Intel, while its iPhones and some iPads used Arm-based chips. x86 chips and Arm chips like the ‌M1‌, ‌M1 Pro‌, and ‌M1 Max‌ are built using different architectures, so the transition from x86 to Arm has taken some effort.

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Apple used Intel's chips in its Mac lineup since 2006 after transitioning away from PowerPC processors, which has meant that Apple was subject to Intel's release timelines, chip delays, and security issues, which at times, negatively affected Apple's own device release plans.

Apple has cited platform consolidation and performance advantages as reasons for ditching Intel chips, but one former Intel engineer claimed that Intel's issues with Skylake chips drove Apple to speed up development of its Arm-based chips. There have been rumors about Apple designing its own Mac chips since 2014, so the decision to stop using Intel chips was in the works for a long time.

Swapping to house-made chips lets Apple release updates on its own schedule and with more regular technology improvements, plus Apple is also able to differentiate its devices from competing products with tight integration between software and hardware, similar to its iOS platform and A-series chips.

Common iOS and Mac Architecture

With Apple designing its own chips for iOS devices and Macs, there is a common architecture across all Apple product lines, which makes it easier for developers to write and optimize software that runs on all Apple products.

In fact, apps designed for the ‌iPhone‌ and the ‌iPad‌ can run on Apple silicon natively, and compatible iOS apps can be downloaded from the Mac App Store on an ‌M1‌ Mac.

Easing the Transition

macOS is equipped with tools to help both developers and Apple customers transition from Intel chips to Apple silicon. All Apple apps, including Apple's pro apps like Final Cut Pro and Logic Pro, are already running natively on Apple silicon and are available on ‌M1‌ Macs. Since the launch of Apple silicon Macs, developers big and small have introduced native support.

Developers can use Xcode to get their apps up and running on Apple silicon in just a matter of days, and Apple has developed tools for building new Universal 2 app binaries that work on Intel Macs and Macs built on Apple silicon so developers can still support Intel Macs with a single binary for all users.

Support for Intel Macs

Apple will continue to release software updates for Intel Macs for years after the transition to Apple silicon, so those who purchase Intel-based Macs can expect to receive macOS updates throughout the life of their machines.

Running Intel Apps on Apple silicon

Apple expects most developers to develop native apps quickly, but users can run Intel apps even if those apps haven't been updated, thanks to Rosetta 2, a translation process that runs in the background and is invisible to the user.

Rosetta 2 translates existing Intel apps so they work on Macs equipped with Apple silicon quickly, seamlessly, and without issues. Apple has demoed Rosetta 2 with apps and games and there's no difference between running an Intel app on an Intel machine and on an Apple silicon machine. All of the features work and the software is just as quick.

Apple has also introduced new virtualization technologies that will let developers run Linux or tools like Docker. Rosetta 2 does not support virtualization using apps like VMware or Parallels, so it is not possible to run Windows using that method unless the apps are rebuilt for Apple silicon, and it's not clear if that will happen at this time in regard to licensing.

No Boot Camp

Windows does not operate in Boot Camp mode on Macs that run Apple silicon as Microsoft only licenses Windows 10 on Arm to OEMs and has no current plans make an Arm-based version of Windows freely available.

Apple has also said that it does not plan to support Boot Camp on its future Macs. "We're not direct booting an alternate operating system," Apple software engineering chief Craig Federighi said. "Purely virtualization is the route." If, however, Microsoft releases an Arm-based version of Windows that consumers can purchase, things might change.

Apple silicon Macs and Thunderbolt Support

Apple is transitioning away from Intel's chips in its Mac and is instead opting to use Apple silicon chips, but Apple is continuing to support Intel's Thunderbolt USB-C standard. The ‌M1‌ Macs support USB 4 and Thunderbolt 3.

Current Arm-Based Macs

Apple has released the 2020 ‌‌MacBook Air‌‌, 13-inch MacBook Pro, and ‌‌Mac mini‌‌ with ‌M1‌ chips, replacing the low-end machines in those lineups. In 2021, Apple added the ‌M1‌ ‌iPad Pro‌ models, the ‌M1‌ ‌iMac‌, and the ‌M1 Pro‌ and ‌M1 Max‌ MacBook Pro models, and in 2022, Apple added the ‌M1 Ultra‌ ‌Mac Studio‌.

Future Arm-Based Macs

Apple is working on updated Apple silicon chips designed for the Mac Pro, 27-inch ‌iMac‌, and high-end ‌Mac mini‌, according to Bloomberg.

The ‌Mac mini‌ and ‌iMac‌ could use the same ‌M1 Pro‌ and ‌M1 Max‌ chips introduced in the 2021 MacBook Pro models, while Apple is also working on even higher-powered chips for the ‌Mac Pro‌. The chip that's in the works for the ‌Mac Pro‌ will feature two processors that are either twice or four times as powerful as the ‌M1 Max‌ MacBook Pro chip. These chips will feature 20 or 40 computing cores with 16 high-performance or 32 high-performance cores and four or eight high-efficiency cores, along with 64 and 128 core options for graphics.

For the 2022 MacBook Air and a refreshed version of the 13-inch MacBook Pro, there's an M2 chip that will feature a 9 or 10-core CPU and more GPU power. Apple is also likely to develop ‌M2‌ Pro and ‌M2‌ Max chips for its Pro machines. Next-generation chips are expected to use an enhanced version of TSMC's 5-nanometer process and will feature two dies, allowing for more cores.

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