Apple iMac G5 (17-inch, Ambient Light Sensor) vs Apple iMac G5 (20-inch, Ambient Light Sensor)

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iMac G5 (17-inch, Ambient Light Sensor) compared with iMac G5 (20-inch, Ambient Light Sensor)

	AppleiMac G5 (17-inch, Ambient Light Sensor)	AppleiMac G5 (20-inch, Ambient Light Sensor)
Overview
Released
Released	May 2005	May 2005
Performance
Processor
Processor	IBM PowerPC G5 1.8 GHz (iMac Ambient Light Sensor) or IBM PowerPC G5 2 GHz (iMac Ambient Light Sensor)	IBM PowerPC G5 2 GHz (iMac Ambient Light Sensor)
CPU cores
CPU cores	1	1
Graphics
Graphics	ATI Radeon 9600 (128 MB)	ATI Radeon 9600 (128 MB)
Memory
Memory	512 MB or 2 GB	512 MB or 2 GB
Storage
Storage	160 GB to 400 GB	250 GB to 400 GB
CPU
CPU	1.8 GHz PowerPC G5 with 600 MHz frontside bus and Combo drive, or 2.0 GHz with 667 MHz bus and SuperDrive; both have 512 KB L2 cache. Generic maker-clock chip records retain the single-core identity cross-checked with exact EveryMac sources; uncertain 970/970FX silicon revision is not inferred.	2.0 GHz PowerPC G5 with 667 MHz frontside bus, 512 KB L2 cache and SuperDrive. Generic maker-clock chip records retain the single-core identity cross-checked with exact EveryMac sources; uncertain 970/970FX silicon revision is not inferred.
GPU
GPU	ATI Radeon 9600 with 128 MB dedicated video memory; AGP 8x support.	ATI Radeon 9600 with 128 MB dedicated video memory; AGP 8x support.
Memory type
Memory type	400 MHz DDR SDRAM (PC3200), two 184-pin DIMM slots; 512 MB standard and 2 GB supported maximum. Configurations conservatively list the published base and maximum; no intermediate factory pairing is inferred.	400 MHz DDR SDRAM (PC3200), two 184-pin DIMM slots; 512 MB standard and 2 GB supported maximum. Configurations conservatively list the published base and maximum; no intermediate factory pairing is inferred.
Storage type
Storage type	160 GB 7200 rpm Serial ATA hard drive, configurable to 250 or 400 GB. The 1.8 GHz base has a Combo drive (DVD reading/CD writing); the 2.0 GHz base has an 8x SuperDrive with 2.4x double-layer DVD writing.	250 GB 7200 rpm Serial ATA hard drive, configurable to 400 GB; 8x SuperDrive with 2.4x double-layer DVD writing.
Display
Screen size
Screen size	17″	20″
Resolution
Resolution	1440 × 900	1680 × 1050 (better)
Display type
Display type	Widescreen LCD with millions of colours; panel technology, refresh rate and brightness not published in the retained exact maker specification.	Widescreen LCD with millions of colours; panel technology, refresh rate and brightness not published in the retained exact maker specification.
Connections
Ports
Ports	3 × USB-A, Ethernet, headphone jack	3 × USB-A, Ethernet, headphone jack
Ethernet
Ethernet	1 Gb/s	1 Gb/s
Wi-Fi
Wi-Fi	802.11g	802.11g
Bluetooth
Bluetooth	2.0 + EDR	2.0 + EDR
Back ports
Back ports	Three USB 2.0 ports on the computer, plus two USB 1.1 ports on the keyboard; two FireWire 400 ports, Mini-VGA output, Gigabit Ethernet, headphone/optical output and audio line-in. Built-in 56K V.92 modem is confirmed by launch press and exact manual; retained USB-HSP wording describes its internal transport, rather than an extra external USB device.	Three USB 2.0 ports on the computer, plus two USB 1.1 ports on the keyboard; two FireWire 400 ports, Mini-VGA output, Gigabit Ethernet, headphone/optical output and audio line-in. Built-in 56K V.92 modem is confirmed by launch press and exact manual; retained USB-HSP wording describes its internal transport, rather than an extra external USB device.
External displays
External displays	Optional Mini-VGA adapters provide VGA, S-video or composite output; no DVI connector is listed.	Optional Mini-VGA adapters provide VGA, S-video or composite output; no DVI connector is listed.
Speakers
Speakers	Built-in stereo speakers and microphone.	Built-in stereo speakers and microphone.
Keyboard and mouse
Keyboard and mouse	Apple Keyboard and Apple Mouse; the later Mighty Mouse and iSight-generation remote are not substituted for the launch accessories.	Apple Keyboard and Apple Mouse; the later Mighty Mouse and iSight-generation remote are not substituted for the launch accessories.
Design and power
Type
Type	All-in-one	All-in-one
Weight
Weight	8.4 kg (better)	11.4 kg
Width × depth × height
Width × depth × height	426 × 173 × 430 mm	493 × 189 × 472 mm
Operating system
Operating system	macOS	macOS
In the box
In the box	iMac G5, keyboard, mouse, power cord, install/restore DVDs and documentation; Mac OS X Tiger, iLife ’05 and AppleWorks. Classic support is available but not preinstalled and cannot boot Mac OS 9.	iMac G5, keyboard, mouse, power cord, install/restore DVDs and documentation; Mac OS X Tiger, iLife ’05 and AppleWorks. Classic support is available but not preinstalled and cannot boot Mac OS 9.