Apple iMac G3 (Early 1999) vs Apple iMac G3 (Mid 1999)

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iMac G3 (Early 1999) compared with iMac G3 (Mid 1999)

	AppleiMac G3 (Early 1999)	AppleiMac G3 (Mid 1999)
Overview
Released
Released	January 1999	April 1999
Performance
Processor
Processor	PowerPC G3 266 MHz (iMac)	PowerPC G3 333 MHz (iMac)
CPU cores
CPU cores	1	1
Graphics
Graphics	ATI RAGE Pro Turbo (6 MB)	ATI RAGE Pro Turbo (6 MB)
Memory
Memory	32 MB or 128 MB	32 MB or 128 MB
Storage
Storage	6 GB	6 GB
CPU
CPU	266 MHz PowerPC G3 with 66 MHz system bus and 512 KB backside L2 cache. Generic clock-only record does not infer a silicon supplier.	333 MHz PowerPC G3 with 66 MHz system bus and 512 KB backside L2 cache. Generic clock-only record does not infer a silicon supplier.
GPU
GPU	ATI RAGE Pro Turbo with 6 MB video memory. The retained maker resolution table includes a conflicting 2 MB column; Apple’s January 1999 release explicitly states 6 MB.	ATI RAGE Pro Turbo with 6 MB video memory. The retained maker resolution table includes a conflicting 2 MB column; The exact Macworld review and EveryMac specification identify 6 MB for this revision.
Memory type
Memory type	32 MB SDRAM in two SO-DIMM slots. Current retained maker sheet gives a 128 MB maximum; older Apple developer history and Italian launch release give 256 MB. The conservative configurations retain the current maker maximum.	32 MB SDRAM in two SO-DIMM slots. Current retained maker sheet gives a 128 MB maximum; older Apple developer history and contemporary Macworld review give 256 MB. The conservative configurations retain the current maker maximum.
Storage type
Storage type	6 GB ATA hard drive and tray-loading 24x CD-ROM.	6 GB ATA hard drive and tray-loading 24x CD-ROM.
Display
Screen size
Screen size	15″	15″
Resolution
Resolution	1024 × 768	1024 × 768
Refresh rate
Refresh rate	75 Hz	75 Hz
Display type
Display type	Nominal 15-inch CRT with 13.8-inch viewable diagonal; not a fixed-native-resolution LCD.	Nominal 15-inch CRT with 13.8-inch viewable diagonal; not a fixed-native-resolution LCD.
Display features
Display features	1024 × 768 at 75 Hz, 800 × 600 at 95 Hz and 640 × 480 at 117 Hz (EveryMac exact-model specification).	1024 × 768 at 75 Hz, 800 × 600 at 95 Hz and 640 × 480 at 117 Hz (EveryMac exact-model specification).
Connections
Ports
Ports	2 × USB-A, Ethernet, 2 × headphone jack	2 × USB-A, Ethernet, 2 × headphone jack
Ethernet
Ethernet	0.1 Gb/s	0.1 Gb/s
Back ports
Back ports	Two USB ports on the computer, 10/100BASE-T Ethernet, 56K V.90 modem, audio line-in/out and two front headphone jacks. No FireWire, external VGA output or AirPort option. The infrared port and mezzanine slot from earlier revisions are absent (EveryMac).	Two USB ports on the computer, 10/100BASE-T Ethernet, 56K V.90 modem, audio line-in/out and two front headphone jacks. No FireWire, external VGA output or AirPort option. The infrared port and mezzanine slot from earlier revisions are absent (EveryMac).
Speakers
Speakers	Built-in stereo speakers with SRS processing and microphone.	Built-in stereo speakers with SRS processing and microphone.
Keyboard and mouse
Keyboard and mouse	Apple USB Keyboard and round Apple USB Mouse; Blueberry, Grape, Tangerine, Lime and Strawberry case colours.	Apple USB Keyboard and round Apple USB Mouse; Blueberry, Grape, Tangerine, Lime and Strawberry case colours.
Design and power
Type
Type	All-in-one	All-in-one
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Maker retained sheet gives weight 40 pounds; height 15.8, width 15.2 and depth 17.6 inches. No converted or sibling metric values are added.	Maker does not publish a weight in the retained sheet; height 15.8, width 15.2 and depth 17.6 inches. No converted or sibling metric values are added.
In the box
In the box	Launch Mac OS 8.5; retained sheet lists 8.5.1. Apple’s Italian release confirms availability in January 1999; an exact worldwide first-sale day is unestablished.	Mac OS 8.5.1. Conservative April 1999 sale month follows Golem’s contemporary report quoting immediate shipping; retained maker introduction date and database day disagree.