Base vs High-end M1 iMac: Geekbench, 3DMark, Cinebench Benchmark

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Base vs High-end iMac 2021 performance comparison

According to the official listing, the high-end M1 iMac 2021 offers an additional GPU core, two extra USB-C ports, Touch ID, Gigabit Ethernet, and more color options over the base model. What it doesn’t reveal is that the two variants come with different cooling solutions as well. Thus, they are certain to hit different performance levels even though Apple doesn’t advertise them as so. Let’s discover the performance gap between base vs high-end M1 iMac.

M1 iMac: Base vs high-end variant

Apple has not been open about the difference in cooling setup between the two configurations. Every electronic device converts some portion of the energy it draws into heat. This heat, if not dissipated properly, can eventually limit the performance of that device.

Here, the cooling mechanism on the base variant consists of a single fan and a heat sink. On the other hand, there are two fans of the high-end model. In addition, it also has a heat pipe for effective heat transmission.

Thus, though both iMacs have the revolutionary Apple M1 chip underneath, the base model will not be performing to the level of its more expensive sibling. To demonstrate the difference between the two, YouTuber Max Tech performed a series of tests, which we have discussed in detail below.

Geekbench 5

Single CoreMulti CoreCompute
Base1,7487,58219,873
High-end1,7367,63121,525

As the table reflects, there is not much difference between the two devices here. This is expected, as Geekbench does not push the machine to its limits.

3DMark Wild Life Extreme

Unlimited Mode
Base26.5 FPS
High-end29.5 FPS

Here, the performance difference is around 10%.

3D Mark Wildlife Stress Test

Best Loop ScoreLowest Loop ScoreStability
Base:16,45415,92496.8%
High-end:18,05217,63997.7%

Unlike 3DMark Life Extreme, this test lasts longer and puts more stress on the GPU cores. Even before the test, the core temperature of the base model was higher than the high-end model.

During the test, it was apparent that the base variant was running hotter, with its temperature reaching up to 91º Celsius. The fan was also operating at its max capacity, whereas the ones on the high-end were barely above idle.

Thus, if you plan to run graphics-intensive tasks for a long period on the M1 iMac, thermal throttling brings down the performance on the base variant, whereas this won’t be much of an issue on the high-end variant.

Cinebench R23

Moving on, Cinebench R23 puts 100% load on the CPU cores and as CPU tends to draw much more power than GPU, the difference between the two variants is clear here.

BaseHigh-End
Score7,0027,722
Core Temperature94º88º
CPU Power10.3W15W
CPU Clock Frequency2.5GHz3.2GHz
Fan Utilization100%50%

Starting off, the dual-fan setup is much more effective as it keeps the CPU cores at 88º Celsius at half its maximum capacity. On the other hand, the single fan solution, even at its full speed, reaches 94º Celsius. Thus, it suffers from throttling.

The high-end variant scored 7,722 points in this test with its CPU operating at 3.2GHz the whole time. In contrast, the CPU on the base model could only hit 2.5GHz resulting in 7,002 points.

Photo and video editing

Lightroom CC – 50x 42MP Export5min 4K H.264 Export1min 4.5K R3D RAW Export
Base4 min 20 sec3 min 2 sec2 min 48 sec
High-end2 min 25 sec3 min2 min 25 sec

As you can see from the table above, you will be getting better performance when it comes to tasks like photo editing and video editing with the high-end model too. In addition, it will run quieter and cooler than the base model.

Base iMac vs High-End M1 iMac: Conclusion

To conclude, if your workload consists of heavy photo/video editing, 3D rendering, and so on, getting the high-end iMac makes more sense. It costs $1,499 and $1,699 for 256GB and 512GB storage, respectively.

However, if you do not do such intensive tasks on your computer, then the base iMac will do just fine—if you are also okay with other limitations as mentioned on Apple’s website.

  • Meanwhile, check out our gaming PC build under $1,000.

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Rabins Sharma Lamichhane

Rabins Sharma Lamichhane is the owner of RabinsXP who is constantly working for increasing the Internet of Things (IoT) in Nepal. He also builds android apps and crafts beautiful websites. He is also working with various social services. The main aim of Lamichhane is to digitally empower the citizens of Nepal and make the world spiritually sound better both in terms of technology and personal development. Rabins is also the first initiator of Digital Nepal.

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