Apple iMac 24″ (M1) vs Apple iMac G3 (Summer 2001)

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iMac 24″ (M1) compared with iMac G3 (Summer 2001)

	AppleiMac 24″ (M1)	AppleiMac G3 (Summer 2001)
Overview
Released
Released	May 2021	July 2001
Performance
Processor
Processor	Apple M1	PowerPC G3 500 MHz (iMac), PowerPC G3 600 MHz (iMac) or PowerPC G3 700 MHz (iMac)
CPU cores
CPU cores	8	1
Graphics
Graphics	7-core GPU or 8-core GPU	ATI RAGE 128 Ultra (16 MB)
Memory
Memory	8 GB or 16 GB (better)	128 MB, 256 MB or 1 GB
Storage
Storage	256 GB to 2 TB (better)	20 GB to 60 GB
CPU
CPU	8-core CPU with 4 performance cores and 4 efficiency cores	500, 600 or 700 MHz PowerPC G3 with 256 KB on-chip L2 cache at processor speed; 100 MHz system bus. Clock-only chip records do not infer a silicon supplier.
GPU
GPU	7-core GPU in the two-port model; 8-core GPU in the four-port model	ATI RAGE 128 Ultra with 16 MB SDRAM in every configuration; AGP 2x.
Memory type
Memory type	–	500 MHz: 128 MB; 600/700 MHz: 256 MB PC100 SDRAM. Two DIMM slots support up to 1 GB. The configurations preserve the base processor/drive ties at base and maximum memory.
AI engine
AI engine	16-core Neural Engine	–
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	500 MHz: 20 GB, Indigo or Snow. 600 MHz: 40 GB, Snow or Graphite. 700 MHz Special Edition: 60 GB, Snow or Graphite. All have an 8x/4x/24x CD-RW drive; no DVD reading. Apple says 500/600 MHz available immediately on 18 July; 700 MHz expected in August.
Display
Screen size
Screen size	24″	15″
Resolution
Resolution	4480 × 2520 (better)	1024 × 768
Panel
Panel	IPS LCD	–
Refresh rate
Refresh rate	60 Hz	75 Hz (better)
Brightness
Brightness	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	15-inch nominal shadow-mask CRT, 13.8-inch viewable diagonal and 0.28 mm dot pitch.
Pixel density
Pixel density	218 ppi	–
Display features
Display features	1 billion colours; wide colour (P3); True Tone; anti-reflective coating	1024 × 768 at 75 Hz, 800 × 600 at 95 Hz and 640 × 480 at 117 Hz. Main refresh describes the highest-resolution mode.
Connections
Ports
Ports	2 × USB4, headphone jack	2 × USB-A, Ethernet, 2 × headphone jack
Ethernet
Ethernet	–	0.1 Gb/s
Front ports
Front ports	–	Two headphone jacks.
External displays
External displays	Up to 1	–
Wi-Fi
Wi-Fi	Wi-Fi 6	–
Bluetooth
Bluetooth	5.0	–
Camera
Camera	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 FireWire 400 ports, two USB ports at 12 Mbps each, VGA mirroring, 10/100BASE-T Ethernet, 56K V.90 modem and audio line-in/out. Keyboard USB ports are excluded from chassis counts. Optional 11 Mbps AirPort card; not built-in wireless.
External displays
External displays	One external display up to 6K 60 Hz, alongside the built-in display at full resolution	VGA output mirrors the built-in screen.
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	Odyssey stereo sound system designed with Harman Kardon; built-in microphone.
Microphones
Microphones	Studio-quality three-mic array with high signal-to-noise ratio and directional beamforming; Hey Siri	–
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	Apple Pro Keyboard and optical Apple Pro Mouse.
Design and power
Type
Type	All-in-one	All-in-one
Weight
Weight	4.46 kg (better)	15.8 kg
Width × depth × height
Width × depth × height	547 × 147 × 461 mm	381 × 435 × 381 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	–	Maker publishes height 38.1, width 38.1 and depth 43.5 cm; weight 15.8 kg.
Power supply
Power supply	143 W external power adapter with magnetic connection; Gigabit Ethernet built into the adapter where fitted	Maximum continuous power 150 W.
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.	–
In the box
In the box	iMac, Magic Keyboard, Magic Mouse, 143 W power adapter, 2 m power lead, USB-C to Lightning cable	Mac OS 9 and Mac OS X supplied with iTunes, iMovie 2 and Disc Burner. Later software revisions described in reviews are not launch firmware.