Apple iMac (20-inch, Early 2008) vs Apple iMac 24″ (M1)

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

iMac (20-inch, Early 2008) compared with iMac 24″ (M1)

	AppleiMac (20-inch, Early 2008)	AppleiMac 24″ (M1)
Overview
Released
Released	April 2008	May 2021
Performance
Processor
Processor	Intel Core 2 Duo E8135 or Intel Core 2 Duo E8335	Apple M1
CPU cores
CPU cores	2	8
Graphics
Graphics	ATI Radeon HD 2400 XT (128 MB GDDR3) or ATI Radeon HD 2600 PRO (256 MB GDDR3)	7-core GPU or 8-core GPU
Memory
Memory	1 GB, 2 GB or 4 GB	8 GB or 16 GB (better)
Storage
Storage	250 GB to 750 GB	256 GB to 2 TB (better)
CPU
CPU	2.4 GHz Intel Core 2 Duo E8135 or 2.66 GHz E8335; 6 MB shared L2 cache and 1066 MHz frontside bus. Exact processor identities cross-checked with EveryMac.	8-core CPU with 4 performance cores and 4 efficiency cores
GPU
GPU	ATI Radeon HD 2400 XT with 128 MB GDDR3 on the 2.4 GHz model; Radeon HD 2600 PRO with 256 MB GDDR3 on the 2.66 GHz model	7-core GPU in the two-port model; 8-core GPU in the four-port model
AI engine
AI engine	–	16-core Neural Engine
Memory type
Memory type	Two user-accessible SO-DIMM slots for 800 MHz DDR2 SDRAM; 1 GB standard on the 2.4 GHz model, configurable to 2 or 4 GB; 2 GB standard on the 2.66 GHz model, configurable to 4 GB	–
Storage type
Storage type	7200 rpm Serial ATA hard drive; 250 GB on the 2.4 GHz model, configurable to 320 or 500 GB; 320 GB on the 2.66 GHz model, configurable to 500 or 750 GB. Slot-loading 8x SuperDrive with 4x double-layer DVD burning.	SSD; two-port model configurable to 512 GB or 1 TB, four-port model to 512 GB, 1 TB or 2 TB
Display
Screen size
Screen size	20″	24″
Resolution
Resolution	1680 × 1050	4480 × 2520 (better)
Panel
Panel	–	IPS LCD
Refresh rate
Refresh rate	–	60 Hz
Brightness
Brightness	290 nits	500 nits (better)
Display type
Display type	Glossy widescreen TFT active-matrix LCD, millions of colours; typical contrast 800:1 and 160° horizontal and vertical viewing angles. Panel technology and refresh rate unpublished and omitted.	4.5K Retina display; actual diagonal 23.5 inches; IPS panel and 60 Hz refresh rate confirmed by Notebookcheck
Pixel density
Pixel density	–	218 ppi
Display features
Display features	–	1 billion colours; wide colour (P3); True Tone; anti-reflective coating
Connections
Ports
Ports	3 × USB-A, Ethernet, headphone jack	2 × USB4, headphone jack
Ethernet
Ethernet	1 Gb/s	–
External displays
External displays	Up to 1	Up to 1
Wi-Fi
Wi-Fi	802.11n draft; compatible with 802.11a/b/g	Wi-Fi 6
Bluetooth
Bluetooth	2.1 + EDR	5.0
Camera
Camera	iSight camera	1080p FaceTime HD
Back ports
Back ports	Three USB 2.0 ports on the computer, plus two on the supplied keyboard; one FireWire 400 and one FireWire 800 port, each rated 7 W; mini-DVI output, Gigabit Ethernet, headphone/optical digital output and line-in/optical digital input. FireWire, mini-DVI and audio input described here.	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.
External displays
External displays	One external display in extended desktop or mirroring mode; digital resolutions up to 1920 × 1200 and analogue up to 2048 × 1536. DVI, VGA, S-video and composite adapters sold separately.	One external display up to 6K 60 Hz, alongside the built-in display at full resolution
Camera
Camera	–	1080p FaceTime HD camera; advanced image signal processor with computational video
Speakers
Speakers	Built-in stereo speakers with internal 24 W digital amplifier and built-in microphone	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
Keyboard and mouse
Keyboard and mouse	Apple Keyboard, Mighty Mouse and infrared Apple Remote; optional wireless keyboard and wireless Mighty 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
Design and power
Type
Type	All-in-one	All-in-one
Weight
Weight	–	4.46 kg
Width × depth × height
Width × depth × height	485 × 189 × 469 mm	547 × 147 × 461 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Maker weight 20 pounds (9.1 kg), varying by configuration and manufacturing process; shared scalar weight omitted	–
Power supply
Power supply	Maximum continuous power 200 W; 100–240 V AC, 50–60 Hz single phase	143 W external power adapter with magnetic connection; Gigabit Ethernet built into the adapter where fitted
Noise
Noise	–	7 dBA sound pressure at idle and during Apple's wireless web test (operator position)
Power use
Power use	Apple environmental report at 230 V records 1.22 W off, 2.20 W sleep and 33.2 W idle with display off or 66.8 W with display on; display on means full brightness	–
Materials
Materials	Recyclable aluminium and glass enclosure; arsenic-free display glass, majority of circuit-board laminates free of brominated flame retardants and PVC-free internal cables	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, Apple Keyboard, Mighty Mouse, Apple Remote, cleaning cloth, power cord, install/restore DVDs and documentation; Mac OS X Leopard and iLife '08	iMac, Magic Keyboard, Magic Mouse, 143 W power adapter, 2 m power lead, USB-C to Lightning cable