M1 vs. M2 Chip Buyer's Guide: How Much Better Really Is M2?

This month, Apple introduced the M2 chip – the second-generation custom silicon chip for the Mac. After the M1 chip revolutionized the Mac starting in November 2020, how much better really is the M2?

m1 vs m2
Apple says that the ‌M2‌ chip takes the performance per watt of the ‌M1‌ even further with an 18 percent faster CPU, a 35 percent more powerful GPU, and a 40 percent faster Neural Engine. There are also other significant enhancements such as more memory bandwidth and support for up to 24GB of unified memory.

As the second major iteration of Apple silicon, it may not be clear how significant of an improvement the ‌M2‌ is over the ‌M1‌, especially as it sticks with a 5nm fabrication process, contrary to some rumors that suggested a bigger performance and efficiency leap would be in store. The ‌M2‌ chip debuts in the 13-inch MacBook Pro and the redesigned MacBook Air, so the extent to which the ‌M2‌ is better than its predecessor could be an important consideration when purchasing a new Mac. Read on to learn more about the differences between the two chips.


M1 Chip

  • Made using TSMC's 5nm process (N5)
  • 16 billion transistors
  • 4 high-performance "Firestorm" cores
  • 4 energy-efficient "Icestorm" cores
  • 3.2GHz CPU clock speed
  • CPU cores first seen in the iPhone 12 lineup's A14 Bionic chip
  • 8-core GPU
  • Support for 8GB or 16GB unified memory
  • 68.25GB/s memory bandwidth
  • Neural Engine
  • Media engine for hardware-accelerated H.264 and HEVC
  • Video decode engine
  • Video encode engine
  • Image signal processor (ISP)


M2 Chip

  • Made with TSMC's enhanced 5nm process (N5P)
  • 20 billion transistors
  • 4 high-performance "Avalanche" cores
  • 4 energy-efficient "Blizzard" cores
  • 3.49GHz CPU clock speed
  • CPU cores first seen in the iPhone 13 lineup's A15 Bionic chip
  • 10-core GPU
  • Support for 8GB, 16GB, or 24GB unified memory
  • 100GB/s memory bandwidth
  • 40 percent faster Neural Engine
  • Media engine for hardware-accelerated H.264, HEVC, ProRes, and ProRes RAW
  • Higher-bandwidth video decode engine
  • Video encode engine
  • ProRes encode and decode engine
  • "New" image signal processor (ISP)

Fabrication Process and Transistors

Like the A14 Bionic, the ‌M1‌ chip is built using TSMC's first-generation 5nm fabrication process. On the other hand, the ‌M2‌ uses TSMC's second-generation 5nm process like the A15 Bionic chip. The ‌M2‌ adds four billion additional transistors for a total of 20 billion – 25 percent more than ‌M1‌. The enhanced 5nm fabrication process is at the heart of many of ‌M2‌'s performance and efficiency improvements.

CPU

The ‌M1‌ and ‌M2‌ both have four high-performance and four energy-efficient cores, but while the ‌M1‌ features "Firestorm" and "Icestorm" cores from the A14 Bionic chip, the ‌M2‌ offers "Avalanche" and "Blizzard" from the A15 Bionic chip. According to Apple, this results in 18 percent greater multithreaded performance than ‌M1‌.

m1 vs m2 cpu performance
In early Geekbench benchmarks, the ‌‌M2‌‌, which runs at 3.49GHz compared to 3.2GHz for the ‌‌M1‌‌, earned a single-core score of 1,919, which is roughly 12 percent faster than the 1,707 single-core score of the ‌‌M1‌‌ 13-inch MacBook Pro. The ‌‌M2‌‌ earned a multi-core score of 8,928, up about 20 percent from the 7,419 score of the ‌‌M1‌‌ model. This is right in line with Apple's claim that the ‌‌M2‌‌ chip is up to 18 percent faster than the ‌‌M1‌.

Both chips have high-performance cores with 192KB of L1 instruction cache and 128KB of L1 data cache. The energy-efficient cores have a 128KB L1 instruction cache, 64KB L1 data cache, and a shared 4MB L2 cache. The only difference here is that the shared L2 cache is larger on the ‌M2‌ chip — 16MB instead of 12MB on the ‌M1‌.

GPU

The ‌M2‌ features two more GPU cores over the ‌M1‌, resulting in a moderate boost in graphics performance. Apple says that the ‌M2‌ has up to 25 percent higher graphics performance than ‌M1‌ at the same power level, and up to 35 percent better performance at its max power. In early Geekbench Metal benchmarks, the ‌‌M2‌‌ chip scored 30,627, a notable improvement over the 21,001 score earned by the ‌‌M1‌‌.

m1 vs m2 gpu performance

Media Engine

Both the ‌M1‌ and the ‌M2‌ have dedicated video encode and decode engines for hardware-accelerated H.264 and HEVC, but the ‌M2‌'s video engines are also able to accelerate ProRes and ProRes RAW to enable playback of multiple streams of 4K and 8K video. In addition, the ‌M2‌'s media engine includes a higher-bandwidth video decoder, supporting 8K H.264 and HEVC video.

Unified Memory

The ‌M1‌ and the ‌M2‌ come in configurations with 8GB or 16GB of unified memory, but the ‌M2‌ adds an additional, top-tier 24GB configuration. The ‌M2‌'s memory controller can also deliver 100GB/s of unified memory bandwidth, a substantial improvement over the ‌M1‌'s 68.25GB/s memory bandwidth.

Other Improvements

The ‌M2‌ features improvements to several of Apple's custom silicon technologies. For example, the Neural Engine can process up to 15.8 trillion operations per second — over 40 percent more than ‌M1‌. The ‌M2‌ also contains Apple's latest Secure Enclave and a new image signal processor (ISP) for better image noise reduction.

Final Thoughts

Overall, the ‌M2‌ chip offers moderate improvements over the ‌M1‌, even if most ‌M1‌ users are unlikely to notice significant improvements when upgrading to the ‌M2‌. The ‌M2‌'s advancements are generally worthwhile, if not transformative, and the chip is certain to provide a more up-to-date experience with lower-spec Apple silicon machines – especially for those coming from an Intel-based machine.

While the ‌M2‌ offers improvements across the board thanks to its enhanced 5nm process, updated cores, and additional GPU cores, the major upgrades come to users who need to work with video, as well as those who have memory-intensive workflows. The ‌M2‌'s higher-bandwidth video decoder and dedicated engine for ProRes and ProRes RAW video offer meaningful improvements for video editors, while the 24GB unified memory tier and 100GB/s of memory bandwidth significantly boost the capacity of ‌M2‌ machines to deal with memory-hungry applications and intense multitasking.

Related Roundups: MacBook Air, 13" MacBook Pro
Related Forums: MacBook Air, MacBook Pro

Top Rated Comments

Spock Avatar
1 week ago
My opinion is that if you already have M1 you'll probably be fine skipping this M2 generation. I think it is better if you are upgrading from Intel.
Score: 29 Votes (Like | Disagree)
erikkfi Avatar
1 week ago
For all the old-timers, this isn't like G4 to G5. It's more like G3/333 to G3/500.
Score: 24 Votes (Like | Disagree)
G46&Fbnth5 Avatar
1 week ago

"In June 2022"

It's still June 2022.
This article will be published several times in the next 12 months
Score: 18 Votes (Like | Disagree)
jav6454 Avatar
1 week ago
In short, if you have an M1, stick to it.
Score: 15 Votes (Like | Disagree)
c84216 Avatar
1 week ago
Its probably not worth getting too hung up year-to-year on these processors. Most people aren't going to be replacing their Macs every year like some do their phones. And even then phones have gotten so good quite a few don't even replace yearly. Right now each A series upgrade is iterative; we're past the A6 to A7 bombshells. Thus, each M upgrade will likely be iterative, not earth shattering. And that sets Apple fans up for year to year dissapointment. But when it comes time to replace my M1 iMac in 2025 or so, and I'm looking at 4 year improvement, then the M upgrade won't seem quite so iterative.
Score: 14 Votes (Like | Disagree)
Mr. Dee Avatar
1 week ago
If you have a M1 Mac you really don’t need this. Heck, if you have a Mac as far back as 2017 you don’t need this. Upgrade only when Apple stops supporting your Mac with macOS releases.
Score: 12 Votes (Like | Disagree)

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