Apple iMac M3 review

The iMac M3 has lots of power and that 24-inch 4.5K screen is to die for, but the base models do need more RAM and storage

Apple iMac M3
(Image: © Rod Lawton)

Digital Camera World Verdict

The iMac M3 is the latest in a long line of beautifully designed, powerful, and seductive (steady-on) all-in-one Macs. The 4.5K 500-nit Retina screen on its own might sell it to you, but inside is a super-fast M3 processor and 8 or 10-core GPU that makes the iMac M3 a photo and video editing powerhouse. But get ready to dig a little deeper into your cash for more RAM and more storage, and for a bunch of adapters, dongles and hubs to get round its minimal connectivity.


  • +

    Elegant, simple design

  • +

    Choice of 7 colors

  • +

    Superb 4.5K screen

  • +

    Fast and powerful


  • -

    Boosting base specs is expensive

  • -

    No SD slot, HDMI or USB Type-A

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The king is dead – long live the king! Apple has swapped out its ‘old’ M1 powered iMac range for a new model with its latest M3 processor. Even amidst all of Apple’s typical processor hyperbole, it’s clear that this new chip marks another step forward in consumer computing.

iMac M3: specifications

Processor: Apple M3 chip with 8-core CPU or 10-core GPU, 16-core Neural Engine

Display: 24-inch 4.5K Retina. 4480x2520 pixels at 218 pixels per inch. P3 color gamut, 500 nits

Memory: 8GB, 16GB or 24GB unified memory

Storage: 256, 512GB, 1TB, or 2TB SSD

Battery: N/A

Ports: Two Thunderbolt / USB 4 ports (base model) plus two USB Type-C (upper model)

Wireless: Wi‑Fi 6E (802.11ax), Bluetooth 5.3

Camera: 1080p FaceTime HD camera

Power: 143W Power Adapter, 2m cable

Size (HWD): 46.1 x 54.7 x 14.7 cm (18.1 x 21.5 x 5.8 in)

Weight: 4.48kg (9.87 pounds)

Swipe to scroll horizontally
Header Cell - Column 0 MacBook Pro 14 (M3)MacBook Air (M2)iMac M3
GeekBench 6 Single-core CPU3,1182,5983,170
GeekBench 6 Multi-core CPU11,7449,93411,991
GeekBench 6 OpenCL30,43024,36930,472
GeekBench 6 Metal47,40139,64647,093
Cinebench R23 Single-core CPU1,9011,5971,921
Cinebench R23 Multi-core CPU10,4438,0989,873

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Rod Lawton

Rod is an independent photography journalist and editor, and a long-standing Digital Camera World contributor, having previously worked as DCW's Group Reviews editor. Before that he has been technique editor on N-Photo, Head of Testing for the photography division and Camera Channel editor on TechRadar, as well as contributing to many other publications. He has been writing about photography technique, photo editing and digital cameras since they first appeared, and before that began his career writing about film photography. He has used and reviewed practically every interchangeable lens camera launched in the past 20 years, from entry-level DSLRs to medium format cameras, together with lenses, tripods, gimbals, light meters, camera bags and more. Rod has his own camera gear blog at but also writes about photo-editing applications and techniques at