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

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

	AppleiMac G5 (17-inch, iSight)	AppleiMac G5 (20-inch, Ambient Light Sensor)
Overview
Released
Released	October 2005	May 2005
Performance
Processor
Processor	IBM PowerPC G5 1.9 GHz (iMac iSight)	IBM PowerPC G5 2 GHz (iMac Ambient Light Sensor)
CPU cores
CPU cores	1	1
Graphics
Graphics	ATI Radeon X600 Pro (128 MB DDR)	ATI Radeon 9600 (128 MB)
Memory
Memory	512 MB, 1 GB, 1.5 GB or 2.5 GB (better)	512 MB or 2 GB
Storage
Storage	160 GB to 500 GB (better)	250 GB to 400 GB
CPU
CPU	1.9 GHz PowerPC G5 with 512 KB L2 cache and 633 MHz frontside bus; single-core identity cross-checked with exact EveryMac source. Generic maker-clock chip record avoids borrowing uncertain silicon revision or unpublished thread/power figures.	2.0 GHz PowerPC G5 with 667 MHz frontside bus, 512 KB L2 cache and SuperDrive.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 X600 Pro with 128 MB dedicated DDR video memory; PCI Express.	ATI Radeon 9600 with 128 MB dedicated video memory; AGP 8x support.
Memory type
Memory type	533 MHz DDR2; 512 MB built in plus one expansion slot. Maker factory upgrades provide total capacities of 1, 1.5 or 2.5 GB.	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 500 GB. Slot-loading 8x SuperDrive with 2.4x double-layer DVD writing, 4x DVD rewritable writing and 24x CD 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)
Brightness
Brightness	250 nits	–
Display type
Display type	TFT active-matrix LCD with millions of colours; typical contrast 500:1 and viewing angles of 140 degrees horizontal/120 degrees vertical. Panel technology and refresh rate unpublished.	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
Camera
Camera	iSight camera	–
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 sharing 8 W, Mini-VGA output, Gigabit Ethernet, headphone/optical output and audio line-in.	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 mirroring or S-video/composite output; no DVI connector or extended-desktop mode is listed.	Optional Mini-VGA adapters provide VGA, S-video or composite output; no DVI connector is listed.
Camera
Camera	Built-in iSight; exact maker resolution is unpublished and omitted.	–
Speakers
Speakers	Built-in stereo speakers and microphone; 12 W digital amplifier.	Built-in stereo speakers and microphone.
Keyboard and mouse
Keyboard and mouse	Apple Keyboard, Mighty Mouse and Apple Remote.	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	7 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
Size and weight detail
Size and weight detail	Maker reference weight; actual weight varies with configuration and manufacturing process.	–
Power supply
Power supply	Maximum continuous power 180 W; 100–240 V AC, 50–60 Hz.	–
In the box
In the box	iMac G5, Apple Keyboard, Mighty Mouse, Apple Remote, power cord, install/restore DVDs and documentation; Mac OS X Tiger, iLife ’05, Front Row and Photo Booth. Apple announced availability the week after 12 October 2005; release remains October at month precision.	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.