Apple iMac (20-inch, Early 2008) vs Apple iMac (20-inch, Late 2006)

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iMac (20-inch, Early 2008) compared with iMac (20-inch, Late 2006)

	AppleiMac (20-inch, Early 2008)	AppleiMac (20-inch, Late 2006)
Overview
Released
Released	April 2008	September 2006
Performance
Processor
Processor	Intel Core 2 Duo E8135 or Intel Core 2 Duo E8335	Intel Core 2 Duo T7400 or Intel Core 2 Duo T7600
CPU cores
CPU cores	2	2
Graphics
Graphics	ATI Radeon HD 2400 XT (128 MB GDDR3) or ATI Radeon HD 2600 PRO (256 MB GDDR3)	ATI Radeon X1600 (128 MB GDDR3) or ATI Radeon X1600 (256 MB GDDR3)
Memory
Memory	1 GB, 2 GB or 4 GB (better)	1 GB, 2 GB or 3 GB
Storage
Storage	250 GB to 750 GB (better)	250 GB to 500 GB
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.	2.16 GHz Core 2 Duo T7400, configurable to 2.33 GHz T7600; 4 MB shared L2 cache and 667 MHz system bus. Exact processor identities cross-checked with EveryMac.
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	ATI Radeon X1600 with 128 MB GDDR3, configurable to 256 MB with either processor
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	Two SO-DIMM slots for PC2-5300 (667 MHz) DDR2 SDRAM; 1 GB standard as two 512 MB modules, configurable to 2 or 3 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.	250 GB 7200 rpm Serial ATA hard drive, configurable to 500 GB; slot-loading 8x SuperDrive with 2.4x double-layer DVD burning. Maker lists processor, memory, storage and graphics upgrades independently.
Display
Screen size
Screen size	20″	20″
Resolution
Resolution	1680 × 1050	1680 × 1050
Brightness
Brightness	290 nits (better)	280 nits
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 Panel technology and refresh rate unpublished and omitted.	Widescreen TFT active-matrix LCD, millions of colours; typical contrast 800:1 and 170° horizontal and vertical viewing angles. Panel technology and refresh rate unpublished.
Connections
Ports
Ports	3 × USB-A, Ethernet, headphone jack	3 × USB-A, Ethernet, headphone jack
Ethernet
Ethernet	1 Gb/s	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	802.11g; 54 Mbps AirPort Extreme
Bluetooth
Bluetooth	2.1 + EDR	2.0 + EDR
Camera
Camera	iSight camera	iSight camera
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.	Three USB 2.0 ports on the computer and two USB 1.1 ports on its keyboard; two FireWire 400 ports sharing 8 W, mini-DVI, Gigabit Ethernet, headphone/optical digital output and line-in/optical digital input
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 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.
Speakers
Speakers	Built-in stereo speakers with internal 24 W digital amplifier and built-in microphone	Built-in stereo speakers with internal 12 W digital amplifier and built-in microphone
Keyboard and mouse
Keyboard and mouse	Apple Keyboard, Mighty Mouse and infrared Apple Remote; optional wireless keyboard and wireless Mighty Mouse	Apple Keyboard, Mighty Mouse and Apple Remote; optional wireless keyboard and mouse
Design and power
Type
Type	All-in-one	All-in-one
Width × depth × height
Width × depth × height	485 × 189 × 469 mm	493 × 189 × 472 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	Maker weight 22 pounds (10 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	Maximum continuous power 180 W; 100–240 V AC, 50–60 Hz single phase
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	–
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, Apple Keyboard, Mighty Mouse, Apple Remote, power cord, install/restore DVDs and documentation; Mac OS X 10.4 Tiger, iLife '06, Front Row, Photo Booth, Microsoft Office 2004 Test Drive and iWork trial