Apple iMac 24″ (M1) vs Apple iMac 24″ (M3)

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iMac 24″ (M1) compared with iMac 24″ (M3)

	AppleiMac 24″ (M1)	AppleiMac 24″ (M3)
Overview
Released
Released	May 2021	November 2023
Performance
Processor
Processor	Apple M1	Apple M3
CPU cores
CPU cores	8	8
Graphics
Graphics	7-core GPU or 8-core GPU	8-core GPU or 10-core GPU
Memory
Memory	8 GB or 16 GB	8 GB or 24 GB (better)
Storage
Storage	256 GB to 2 TB	256 GB to 2 TB
CPU
CPU	8-core CPU with 4 performance cores and 4 efficiency cores	8-core CPU with 4 performance cores and 4 efficiency cores
GPU
GPU	7-core GPU in the two-port model; 8-core GPU in the four-port model	8-core GPU (two-port model) or 10-core GPU (four-port models); hardware-accelerated ray tracing
AI engine
AI engine	16-core Neural Engine	16-core Neural Engine
Memory bandwidth
Memory bandwidth	–	100GB/s
Storage type
Storage type	SSD; two-port model configurable to 512 GB or 1 TB, four-port model to 512 GB, 1 TB or 2 TB	SSD
Media engine
Media engine	–	Hardware-accelerated H.264, HEVC, ProRes and ProRes RAW; video decode engine; video encode engine; ProRes encode and decode engine; AV1 decode
Display
Screen size
Screen size	24″	24″
Resolution
Resolution	4480 × 2520	4480 × 2520
Panel
Panel	IPS LCD	IPS LCD
Refresh rate
Refresh rate	60 Hz	60 Hz
Brightness
Brightness	500 nits	500 nits
Display type
Display type	4.5K Retina display; actual diagonal 23.5 inches; IPS panel and 60 Hz refresh rate confirmed by Notebookcheck	4.5K Retina display; actual diagonal 23.5 inches
Pixel density
Pixel density	218 ppi	218 ppi
Display features
Display features	1 billion colours; wide colour (P3); True Tone; anti-reflective coating	1 billion colours; wide colour (P3); True Tone
Connections
Ports
Ports	2 × USB4, headphone jack	2 × USB4, headphone jack
External displays
External displays	Up to 1	Up to 1
Wi-Fi
Wi-Fi	Wi-Fi 6	Wi-Fi 6E
Bluetooth
Bluetooth	5.0	5.3
Camera
Camera	1080p FaceTime HD	1080p FaceTime HD
Back ports
Back ports	Two-port model: two Thunderbolt / USB 4 ports with DisplayPort, Thunderbolt 3 and USB 4 up to 40 Gb/s, and USB 3.1 Gen 2 up to 10 Gb/s; optional Gigabit Ethernet. Four-port model adds two USB 3 ports up to 10 Gb/s and includes Gigabit Ethernet. Both have a 3.5 mm headphone jack.	Two-port model: 2 × Thunderbolt / USB 4 with DisplayPort, Thunderbolt 3 (up to 40Gb/s), USB 4 (up to 40Gb/s) and USB 3.1 Gen 2 (up to 10Gb/s), Gigabit Ethernet optional; four-port models add 2 × USB 3 (up to 10Gb/s) and Gigabit Ethernet as standard; 3.5 mm headphone jack with advanced support for high-impedance headphones
External displays
External displays	One external display up to 6K 60 Hz, alongside the built-in display at full resolution	One at up to 6K 60Hz
Camera
Camera	1080p FaceTime HD camera; advanced image signal processor with computational video	1080p FaceTime HD camera; advanced image signal processor with computational video
Speakers
Speakers	High-fidelity six-speaker system with force-cancelling woofers; wide stereo sound; spatial audio with Dolby Atmos	High-fidelity six-speaker system with force-cancelling woofers; wide stereo sound; Spatial Audio with Dolby Atmos
Microphones
Microphones	Studio-quality three-mic array with high signal-to-noise ratio and directional beamforming; Hey Siri	Studio-quality three-mic array with high signal-to-noise ratio and directional beamforming
Keyboard and mouse
Keyboard and mouse	Magic Mouse and Magic Keyboard; keyboard has Touch ID on the four-port model and optionally on the two-port model; Magic Trackpad and Magic Keyboard with Touch ID and Numeric Keypad available instead	Magic Keyboard (two-port model) or Magic Keyboard with Touch ID (four-port models), and Magic Mouse; Magic Trackpad or Magic Keyboard with Touch ID and Numeric Keypad available instead
Design and power
Type
Type	All-in-one	All-in-one
Weight
Weight	4.46 kg	4.43 kg (better)
Width × depth × height
Width × depth × height	547 × 147 × 461 mm	547 × 147 × 461 mm
Operating system
Operating system	macOS	macOS
Power supply
Power supply	143 W external power adapter with magnetic connection; Gigabit Ethernet built into the adapter where fitted	143W external power adapter; power lead (2 m)
Noise
Noise	7 dBA sound pressure at idle and during Apple's wireless web test (operator position)	–
Materials
Materials	Recyclable, low-carbon aluminium enclosure	–
Colours
Colours	Two-port model: Blue, Green, Pink, Silver. Four-port model also comes in Yellow, Orange and Purple.	Two-port model: Blue, Green, Pink, Silver; four-port models also Yellow, Orange, Purple
In the box
In the box	iMac, Magic Keyboard, Magic Mouse, 143 W power adapter, 2 m power lead, USB-C to Lightning cable	iMac, Magic Keyboard (with Touch ID on four-port models), Magic Mouse, 143W power adapter, power lead (2 m), USB-C to Lightning Cable