iMac (24-inch, M3, 2023, Four ports)

Quick look

Price: £1,599²launch price
Chip: M3chip
CPU: 8-coreCPU
GPU: 10-coreGPU
Memory: 8GBunified memory, base
Storage: 256GBstorage, base
Display: 24-inchdisplay
Released: 7 November 2023²ReleasedIn Apple Stores; orderable online from 30 October 2023.
Security updates: Not available³Security updates

Each figure is from the source marked¹ unless it carries its own number.

Drawn to scale from the published dimensions below: the front face. Outline only — the corner radius, where the display sits in the face and the stand’s width are our drawing conventions, not measurements; the display rectangle is Apple’s diagonal at its aspect ratio.

Specifications

Body

Dimensions: 461 x 547 x 147 mm
Weight: 4.48 kg
Colours: Blue, Green, Pink, Silver, Yellow, Orange, Purple
Ports: Two Thunderbolt / USB 4 ports, two USB 3 ports (up to 10Gb/s), 3.5 mm headphone jack, Gigabit Ethernet
Thunderbolt ports: 2
Thunderbolt version: Thunderbolt 3
HDMI: No HDMI port.⁴
SD card slot: No SD card slot.⁴
Headphone jack: Yes
Keyboard: Magic Keyboard with Touch ID
Touch ID: Yes

Display

Display size: 24 in
Resolution: 4480 x 2520
Pixel density: 218 ppi
Display type: 4.5K Retina display
Brightness: 500 nits
Wide colour (P3): Yes
Nano-texture option: No nano-texture display option.⁴

Chip and memory

Chip: Apple M3 chip
Apple silicon: Yes
CPU cores: 8
Performance cores: 4
Efficiency cores: 4
GPU cores: 10
Neural Engine cores: 16
Chip options: M3 with 8-core CPU and 10-core GPU
Memory (base): 8GB
Memory (maximum): 24GB
Memory options: 8GB, 16GB or 24GB
Memory upgradeable by user: No, as Apple documents⁵
Memory bandwidth: 100 GB/s
Storage (base): 256GB
Storage (maximum): 2TB
Storage options: 256GB, 512GB, 1TB or 2TB
Media engine: Hardware-accelerated H.264, HEVC, ProRes and ProRes RAWvideo decode enginevideo encode engineProRes encode and decode engineAV1 decode

Battery and power

Included power adapter: 143 W⁶

Connectivity

Wi-Fi: Wi‑Fi 6E (802.11ax)
Bluetooth: 5.3
Ethernet: Gigabit Ethernet
External displays (base): 1

Camera and audio

Camera: 1080p FaceTime HD camera
Speakers: High-fidelity six-speaker system with force-cancelling woofers
Microphones: Studio-quality three-mic array with high signal-to-noise ratio and directional beamforming

Platform

Newest macOS: macOS 27 Golden Gate⁷
Model identifier: Mac15,5⁸
Part numbers: MQRJ3xx/A, MQRK3xx/A, MQRL3xx/A, MQRM3xx/A, MQRN3xx/A, MQRP3xx/A, MQRQ3xx/A, MQRR3xx/A, MQRT3xx/A, MQRU3xx/A, MQRV3xx/A, MQRW3xx/A, MQRX3xx/A, MQRY3xx/A⁹
Model year: 2023

Benchmarks

Geekbench 7 (CPU, single-core): 2,748¹⁰
Geekbench 7 (CPU, multi-core): 11,671¹⁰
Geekbench 7 (Metal): 48,070¹⁰

An iMac has no battery, so battery rows do not apply.

What it actually costs

Used, Grade A: £775–£800¹¹cheapest of 7 CeX listings · out of stock online and in store when read · repriced 30 October 2026 · since 1 Nov 2026 · earlier: £800 from 15 Oct 2026; £825 from 28 Sep 2026
Used, Grade B: £725–£750¹²cheapest of 7 CeX listings · repriced 30 October 2026 · since 1 Nov 2026 · earlier: £750 from 15 Oct 2026; £775 from 28 Sep 2026
Used, Grade C: £675–£700¹³cheapest of 7 CeX listings · out of stock online and in store when read · repriced 30 October 2026 · since 1 Nov 2026 · earlier: £700 from 15 Oct 2026; £725 from 28 Sep 2026
Trade in yours, Grade A: £426 cash / £519 voucher¹¹22% more as store credit

Read 3 November 2026. CeX is one UK retailer; its used and trade-in figures are shown at its condition grades for the base configuration: M3 with 8-core CPU and 10-core GPU, 8GB memory, 256GB storage. “Since” is the first day MacIQ read that figure; “earlier” figures were each read from the date shown. We hold no stock and take no commission.

Apple UK price, as listed

1 November 2023 to 4 October 2024: £1,599¹⁴¹⁵

Apple’s UK store page for the base configuration (Apple M3 chip, 8-core CPU, 10-core GPU, 8GB memory, 256GB storage), as the Internet Archive saved it. Each row runs from the first to the last Internet Archive capture MacIQ read at that price; the price may have held before and after. MacIQ read a selection of the Archive’s captures, not every one. Read 18 October 2026.

Software support

Feature updates until: Not available¹⁶
Security updates until: Not available¹⁶
Basis: our inference from history¹⁷

Previous and next model

Next model

iMac (24-inch, M4, 2024, Four ports), November 2024

What changed

Weight: 4.48 kg iMac M34.44 kg iMac M4
Ports: Two Thunderbolt / USB 4 ports, two USB 3 ports (up to 10Gb/s), 3.5 mm headphone jack, Gigabit Ethernet iMac M3Four Thunderbolt 4 ports, 3.5mm headphone jack, Gigabit Ethernet iMac M4
Thunderbolt ports: 2 iMac M34 iMac M4
Chip: Apple M3 chip iMac M3Apple M4 chip iMac M4
CPU cores: 8 iMac M310 iMac M4
Memory (base): 8GB iMac M316GB iMac M4
Memory bandwidth: 100 GB/s iMac M3120 GB/s iMac M4

Full comparison

Comparisons

Against its own line

Against the rest of the range

Compare it with any other Mac

Sources

Apple Support (UK) — iMac (24-inch, 2023, Four ports) - Tech Specs · Default for iMac (24-inch, M3, 2023, Four ports) · Apple’s figure · read 15 Sep 2026
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Apple Newsroom (UK) — Apple supercharges 24-inch iMac with new M3 chip · Apple’s figure · read 15 Sep 2026
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Security updates: no end date published. Checked: endoflife.date. Read 22 Sep 2026
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No HDMI port. No SD card slot. No nano-texture display option. Checked: Apple Support (UK) — iMac (24-inch, 2023, Four ports) - Tech Specs. Read 9 Oct 2026
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Apple Support (UK) — Install memory in an iMac · Apple’s figure · read 18 Oct 2026
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Apple Support (UK) — iMac (24-inch, 2023, Four ports) - Tech Specs · Apple’s figure · read 9 Oct 2026
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Apple Support (UK) — macOS 27 Golden Gate is compatible with these computers · Apple’s figure · read 22 Sep 2026
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Apple Support (UK) — Identify your iMac model · Apple’s figure · read 15 Sep 2026
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Apple Support (UK) — Identify your iMac model · Apple’s figure · read 18 Oct 2026
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Geekbench Browser (Primate Labs) · third-party figure · read 11 Oct 2026
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CeX — Used, Grade A · third-party figure · read 3 Nov 2026
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CeX — Used, Grade B · third-party figure · read 3 Nov 2026
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CeX — Used, Grade C · third-party figure · read 3 Nov 2026
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Apple Store (UK), as saved by the Internet Archive — Buy iMac - Apple (UK), captured 1 Nov 2023 · Apple’s figure · read 18 Oct 2026
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Apple Store (UK), as saved by the Internet Archive — Buy iMac - Apple (UK), captured 4 Oct 2024 · Apple’s figure · read 18 Oct 2026
↩
Feature and security updates: end dates not published by Apple. Checked: endoflife.date. Read 22 Sep 2026
↩
Apple’s macOS 27 Golden Gate compatibility list names this Mac. endoflife.date says Apple usually provides security updates for the latest three macOS releases, but that this isn’t consistently applied; Apple publishes no end date. Source: endoflife.date. Read 22 Sep 2026
↩

Not published by Apple

iMac (24-inch, M3, 2023, Four ports). Apple doesn’t publish for this Mac: USB-A ports, refresh rate, storage upgradeable by user, maximum continuous power, the macOS it shipped with. Pages checked: Apple Support (UK) — iMac (24-inch, 2023, Four ports) - Tech Specs; Apple Support (UK) — Identify your iMac model; Apple Newsroom (UK) — Apple supercharges 24-inch iMac with new M3 chip, read 9 Oct 2026.