Apple iMac 24″ (M3) vs Apple iMac G4 (15-inch, USB 2.0)

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iMac 24″ (M3) compared with iMac G4 (15-inch, USB 2.0)

	AppleiMac 24″ (M3)	AppleiMac G4 (15-inch, USB 2.0)
Overview
Released
Released	November 2023	September 2003
Performance
Processor
Processor	Apple M3	Motorola PowerPC G4 1 GHz (iMac USB 2.0)
CPU cores
CPU cores	8	1
Graphics
Graphics	8-core GPU or 10-core GPU	NVIDIA GeForce4 MX (32 MB)
Memory
Memory	8 GB or 24 GB (better)	256 MB, 512 MB or 1 GB
Storage
Storage	256 GB to 2 TB (better)	80 GB to 160 GB
CPU
CPU	8-core CPU with 4 performance cores and 4 efficiency cores	1 GHz PowerPC G4 with 167 MHz system bus and 256 KB on-chip L2 cache; a generic maker-clock record avoids inferring a silicon revision.
GPU
GPU	8-core GPU (two-port model) or 10-core GPU (four-port models); hardware-accelerated ray tracing	NVIDIA GeForce4 MX with 32 MB dedicated DDR video memory and AGP 4x support.
Memory type
Memory type	–	256 MB PC2700 (333 MHz) DDR SDRAM standard; factory options 512 MB or 1 GB. One 184-pin DIMM and one user-accessible SO-DIMM slot.
AI engine
AI engine	16-core Neural Engine	–
Memory bandwidth
Memory bandwidth	100GB/s	–
Storage type
Storage type	SSD	80 GB 7200 rpm Ultra ATA/100 hard drive, configurable to 160 GB; 32x Combo DVD-ROM/CD-RW drive. Published memory and storage factory options are retained for the 1 GHz processor.
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″	15″
Resolution
Resolution	4480 × 2520 (better)	1024 × 768
Panel
Panel	IPS LCD	–
Refresh rate
Refresh rate	60 Hz	–
Brightness
Brightness	500 nits (better)	200 nits
Display type
Display type	4.5K Retina display; actual diagonal 23.5 inches	TFT active-matrix LCD with millions of colours and typical 300:1 contrast. Exact maker sheet does not publish panel technology or refresh rate.
Pixel density
Pixel density	218 ppi	–
Display features
Display features	1 billion colours; wide colour (P3); True Tone	Typical viewing angles 120° horizontal and 90° vertical; articulated arm adjusts display height and angle.
Connections
Ports
Ports	2 × USB4, headphone jack	3 × USB-A, Ethernet, headphone jack
Ethernet
Ethernet	–	0.1 Gb/s
External displays
External displays	Up to 1	–
Wi-Fi
Wi-Fi	Wi-Fi 6E	–
Bluetooth
Bluetooth	5.3	–
Camera
Camera	1080p FaceTime HD	–
Back ports
Back ports	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	Three USB 2.0 ports on the computer, up to 480 Mbps, plus two USB 1.1 ports on the keyboard; two FireWire 400 ports with 8 W shared power, Mini-VGA, 10/100BASE-T Ethernet, 56K V.92 modem, headphone jack, Apple speaker minijack and audio line-in. AirPort Extreme 802.11g card and internal Bluetooth are optional.
External displays
External displays	One at up to 6K 60Hz	Mini-VGA provides video mirroring on a VGA display or S-video/composite television through optional adapters. Output resolutions: 640 × 480 at 60 Hz, 800 × 600 at 75 Hz or 1024 × 768 at 75 Hz.
Camera
Camera	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	Built-in speaker and microphone, Apple Pro Speakers rated at 7 W each and internal 14 W amplifier.
Microphones
Microphones	Studio-quality three-mic array with high signal-to-noise ratio and directional beamforming	–
Keyboard and mouse
Keyboard and mouse	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	Apple Keyboard, Apple Mouse, Apple Pro Speakers and modem cable.
Design and power
Type
Type	All-in-one	All-in-one
Weight
Weight	4.43 kg (better)	9.7 kg
Width × depth × height
Width × depth × height	547 × 147 × 461 mm	–
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	–	Maker adjustable ranges: height 329–509 mm, width 384–415 mm and depth 270–415 mm; base diameter 270 mm. Reference weight varies by configuration and manufacturing process.
Power supply
Power supply	143W external power adapter; power lead (2 m)	90–264 V AC, 47–63 Hz, single phase; maximum continuous power 130 W.
Colours
Colours	Two-port model: Blue, Green, Pink, Silver; four-port models also Yellow, Orange, Purple	–
In the box
In the box	iMac, Magic Keyboard (with Touch ID on four-port models), Magic Mouse, 143W power adapter, power lead (2 m), USB-C to Lightning Cable	Launch Mac OS X 10.2 Jaguar and iLife, with productivity software and Tony Hawk’s Pro Skater 4. The retained sheet lists the later Mac OS X 10.3 Panther bundle. Maker launch confirms immediate availability on 8 September 2003.