Apple M1 tested: Performance benchmarks and thermal throttling – Android Authority
Posted: December 19, 2020 at 10:55 am
Apple raised a lot of eyebrows this summer when it announced that it would stop using Intel processors. Its Mac computers would instead migrate to its own processors based on the Arm Instruction Set Architecture (ISA). Intel and AMD have been dominant in the PC laptop and desktop market for decades. For more than 15 years, Intel has been the sole supplier of processors for Apples Mac range. However, Apple has a long history with Arm.
Arm specialized in building energy-efficient processors that only used a few watts of power. This meant they were perfect for smartphones and tablets. From the very first iPhone right up until today, Apple has used Arm-based processors in its mobile devices. With that wealth of experience and expertise, the Cupertino company concluded that it could build processors that were energy-efficient, but also offered competitive performance. It, therefore, decided to expand the reach of its smartphone and tablet processors and move into the PC market.
See also: Want an Apple laptop? Here are the best you can buy right now
And so the Apple M1 processor was born. It is the SoC found in the new MacBook Air, 13-inch MacBook Pro, and Mac Mini. It is also the first of a series of processors that will see Apple completely replace Intel in every Mac model. This transition will take about two years and the three new M1 based devices are just the beginning.
But, is the performance of the M1 competitive, or did Apple make a mistake? Lets find out!
Credit: Gary Sims / Android Authority
The Apple M1 is an SoC. That means it has a CPU, a GPU, a Neural Engine, and I/O (like Thunderbolt). It has 16 billion transistors and is manufactured using a 5nm process.
The M1 has four performance cores, each designed to run a single task as efficiently as possible while maximizing performance. Four efficiency cores handle lighter workloads. There is also an eight-core integrated GPU. According to Apple, the M1 offers up to 3.5x faster CPU performance, compared to 1.2GHz Intel Core i7-1060NG7 found in the previous generation of MacBook Air.
If you want more information on the Apple M1 then you might find my Apple M1 and new Macsvideo useful.
Credit: Gary Sims / Android Authority
To test the performance of the Apple M1, I am using a MacBook Air with the 8-Core CPU/8-Core GPU variant of the processor along with 8GB of RAM and 512GB of storage.
According to the official Geekbench results, the MacBook Air with the M1 scores 1,690 for the Single-Core test. That means that the new MacBook Air has better single-core performance than every Intel Mac that exists. Not just every Intel MacBook Air, but every Intel-based Mac.
The new MacBook Air has better single-core performance than every Intel Mac that exists.
For multi-core, the M1 based MacBook Air scores 7,304. With just eight cores, this isnt going to be earth-shattering. The late 2019 Mac Pro has a 28-core Intel Xeon processor, so the mere eight-core MacBook Air isnt going to beat it. However, it does beat every other Intel-based Mac that isnt a Mac Pro. The only exceptions are the very high-end 27-inch iMacs from 2019 and 2020. Very impressive for Apples first laptop processor!
Cinebench is a real-world test that evaluates a computers processor by running CPU only rendering tasks and measuring the performance. Cinebench R23 gives the M1 based MacBook Air a score of 1,515 for single-core performance. That is higher than the Intel Core i7-7700K, higher than the Intel Core i7-1060NG7, better than AMD Ryzen Threadripper 2990, and just below the 11th generation Intel Core i7-1165G7.
Credit: Gary Sims / Android Authority
As with Geekbench, the multi-core score isnt going to be revolutionary. It scores 7,326, which interestingly beats the Intel Core i7-7700K and the Intel Core i7-1060NG7 (from the previous generation of MacBook Air). But there are plenty of processors with 16, 24, 32, or more cores. These naturally score higher.
Speed Test G is our custom performance testing system that takes the best parts of traditional speed tests and combines them with the benefits of benchmarks. It runs primarily on Android (although there is a version for iOS) and measures performance by launching a series of apps that perform both single-core and multi-core tasks. As in real life, not everything is single-core, but neither is everything multi-core.
Speed Test G PC, a reimagining of Speed Test G this time for desktops and laptops gives the MacBook Air a run time of 56 seconds. That is faster than the 2019 MBP 16-inch with the i9-9980HK and faster than the 2019 MBP 13-inch with the i7-8569U.
The MacBook Air has no fan or active cooling. This makes it a perfect candidate for testing the thermal properties of the M1 chip. Does the processor slow down when it heats up? If so, by how much?
After a night of sitting in my office, the MacBook Air had a surface temperature of around 20C. I then ran several programs to stress the CPU and GPU to the maximum. This included Speed Test G PC and the Unity benchmark from the mobile version of Speed Test G (but built for the M1 on macOS). It was also connected to the mains, generating heating as a side product of charging. As the processor started to heat up, the bottom of the laptop became warm (due to the passive cooling), particularly in the center towards the back. This heat spread slowly outwards from that middle point.
Apple has managed to jump directly into the laptop and the small desktop market at a competitive level.
After an hour of heavy load, the temperature on the underside of the device hit 41C. Additionally, the battery stopped charging (although it wasnt full or even near the smart battery level of 80%). This was due to the heat. There is likely some software that detects the thermal situation and stops the charging to ensure that the device doesnt become too hot. Once the stress on the processor was reduced, the laptop started charging again.
While the laptop was nice and warm, I ran the multi-core test from Cinebench R23 again. The result was a 7,110, down from 7,336 less than 5%.
What this means is that the processor generates heat under heavy loads, as does every processor, but the passive cooling is able to disperse that heat efficiently. The overall impact on performance is minimal.
Credit: Gary Sims / Android Authority
Apple has managed to jump directly into the laptop and the small desktop market at a competitive level. The M1 is fast. Is it the fastest chip on the planet? No, but it isnt designed to be. Is it the fastest processor ever used in a Mac laptop? Absolutely. Will it handle your workloads? Almost certainly.
Opinion: Dont be duped by performance, Apples M1 silicon is all about platform control
It also means that Apple has successfully made the first steps in replacing Intel processors in its Mac range. The next iteration of processors those that will be used by the iMac will be very interesting, as Apple will be trying to loosen Intel and AMDs grip on turf that is traditionally their stronghold. Can Apple do it? If the M1 is a measure of the companys potential then the answer is a resounding yes.
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Apple M1 tested: Performance benchmarks and thermal throttling - Android Authority
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