Apple iMac (17-inch, Early 2006) vs Apple iMac (20-inch, Early 2006)

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iMac (17-inch, Early 2006) compared with iMac (20-inch, Early 2006)

	AppleiMac (17-inch, Early 2006)	AppleiMac (20-inch, Early 2006)
Overview
Released
Released	January 2006	January 2006
Performance
Processor
Processor	Intel Core Duo T2400	Intel Core Duo T2500
CPU cores
CPU cores	2	2
Graphics
Graphics	ATI Radeon X1600 (128 MB GDDR3)	ATI Radeon X1600 (128 MB GDDR3) or ATI Radeon X1600 (256 MB GDDR3)
Memory
Memory	512 MB, 1 GB or 2 GB	512 MB, 1 GB or 2 GB
Storage
Storage	160 GB to 250 GB	250 GB to 500 GB (better)
CPU
CPU	1.83 GHz Intel Core Duo T2400 with 2 MB shared L2 cache and 667 MHz system bus; exact identity confirmed by Ars Technica's tested unit	2 GHz Intel Core Duo T2500 with 2 MB shared L2 cache and 667 MHz system bus; exact identity documented in Ars Technica's launch review
GPU
GPU	ATI Radeon X1600 with 128 MB GDDR3; the maker's 256 MB upgrade applies only to the separate 20-inch model	ATI Radeon X1600 with 128 MB GDDR3, configurable to 256 MB
Memory type
Memory type	Two SO-DIMM slots for PC2-5300 (667 MHz) DDR2 SDRAM; 512 MB standard as one module, expandable to 2 GB. The intermediate 1 GB factory option is documented by Sound On Sound's full exact-model review.	Two SO-DIMM slots for PC2-5300 (667 MHz) DDR2 SDRAM; 512 MB standard as one module, expandable to 2 GB. The intermediate 1 GB factory option is documented by Sound On Sound's launch review.
Storage type
Storage type	160 GB 7200 rpm Serial ATA hard drive, configurable to 250 GB in the maker's archived technical sheet; slot-loading 8x SuperDrive with 2.4x double-layer DVD burning. Sound On Sound also describes a 500 GB order option; omitted from configurations because the maker sheet only ties 500 GB to the 20-inch model.	250 GB 7200 rpm Serial ATA hard drive, configurable to 500 GB; slot-loading 8x SuperDrive with 2.4x double-layer DVD burning
Display
Screen size
Screen size	17″	20″
Resolution
Resolution	1440 × 900	1680 × 1050 (better)
Brightness
Brightness	250 nits	280 nits (better)
Display type
Display type	Widescreen TFT active-matrix LCD, millions of colours; typical contrast 500:1, viewing angles 140° horizontal and 120° vertical. Panel technology and refresh rate unpublished.	Widescreen TFT active-matrix LCD, millions of colours; typical contrast 800:1 and viewing angles 170° horizontal and vertical. Panel technology and refresh rate unpublished.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	802.11g; 54 Mbps AirPort Extreme	802.11g; 54 Mbps AirPort Extreme
Bluetooth
Bluetooth	2.0 + EDR	2.0 + EDR
Camera
Camera	iSight camera	iSight camera
Back ports
Back ports	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 analogue audio line input	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 analogue audio line input
External displays
External displays	One external display in extended desktop or mirroring mode; digital resolutions up to 1920 × 1200. DVI, VGA, S-video and composite adapters sold separately; analogue maximum omitted because the archived maker page gives an unresolved 2045 × 1536 figure.	One external display in extended desktop or mirroring mode; digital resolutions up to 1920 × 1200. DVI, VGA, S-video and composite adapters sold separately; analogue maximum omitted because the archived maker page gives an unresolved 2045 × 1536 figure.
Speakers
Speakers	Built-in stereo speakers with internal 12 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 Apple Remote; optional wireless keyboard and 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	426 × 173 × 430 mm	493 × 189 × 472 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Maker weight 15.5 pounds (7 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 180 W; 100–240 V AC, 50–60 Hz single phase	Maximum continuous power 180 W; 100–240 V AC, 50–60 Hz single phase
In the box
In the box	iMac, Apple Keyboard, Mighty Mouse, Apple Remote, power cord, install/restore DVDs and documentation; Mac OS X 10.4.4 Tiger and iLife '06, Front Row, Photo Booth, Microsoft Office 2004 Test Drive and iWork trial	iMac, Apple Keyboard, Mighty Mouse, Apple Remote, power cord, install/restore DVDs and documentation; Mac OS X 10.4.4 Tiger and iLife '06, Front Row, Photo Booth, Microsoft Office 2004 Test Drive and iWork trial