Apple iMac G3 (Early 2001) vs Apple iMac G3 (Mid 1999)

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iMac G3 (Early 2001) compared with iMac G3 (Mid 1999)

	AppleiMac G3 (Early 2001)	AppleiMac G3 (Mid 1999)
Overview
Released
Released	February 2001	April 1999
Performance
Processor
Processor	PowerPC G3 400 MHz (iMac), PowerPC G3 500 MHz (iMac) or PowerPC G3 600 MHz (iMac)	PowerPC G3 333 MHz (iMac)
CPU cores
CPU cores	1	1
Graphics
Graphics	ATI RAGE 128 Pro (8 MB) or ATI RAGE 128 Ultra (16 MB)	ATI RAGE Pro Turbo (6 MB)
Memory
Memory	64 MB, 128 MB or 1 GB (better)	32 MB or 128 MB
Storage
Storage	10 GB to 40 GB (better)	6 GB
CPU
CPU	400 MHz PowerPC G3 with 512 KB backside L2 cache at 160 MHz; 500 MHz and 600 MHz models have 256 KB on-chip L2 cache at processor speed. All use a 100 MHz system bus. Generic clock-only chip records do not infer silicon suppliers; cache differences remain in model details.	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	400 MHz configuration: ATI RAGE 128 Pro with 8 MB SDRAM. 500 MHz and 600 MHz configurations: ATI RAGE 128 Ultra with 16 MB SDRAM; AGP 2x. A contemporary Macworld report observed European 500 MHz store listings with 512 KB cache and 8 MB Pro graphics, but explicitly questioned their accuracy and had no Apple confirmation. The current maker matrix is retained; no inferred regional CPU supplier or alternate SKU is added.	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	64 MB PC100 SDRAM standard on 400/500 MHz configurations; 128 MB on 600 MHz Special Edition. Two DIMM slots support up to 1 GB in the current maker sheet. Configurations retain each base and maximum memory with its original processor and drive.	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	400 MHz: 10 GB Ultra ATA and 24x CD-ROM, Indigo. 500 MHz: 20 GB and 8x/4x/24x CD-RW, Indigo, Blue Dalmatian or Flower Power. 600 MHz Special Edition: 40 GB and CD-RW, Graphite, Blue Dalmatian or Flower Power. Maker lists up to 40 GB build-to-order storage without precise processor ties, so extra cross-combinations are not created.	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 shadow-mask CRT with 13.8-inch viewable diagonal and 0.28 mm dot pitch; no fixed LCD native resolution.	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. Scalar refresh describes the highest-resolution mode.	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 FireWire 400 ports and VGA video mirroring on every configuration; Two 12 Mbps USB ports on the computer, 10/100BASE-T Ethernet, 56K V.90 modem, audio line-in/out and two front headphone jacks; keyboard USB ports are not counted as chassis ports. All configurations are AirPort ready with an optional 11 Mbps card.	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).
External displays
External displays	VGA output mirrors the built-in screen; no extended desktop.	–
Speakers
Speakers	Integrated Odyssey stereo sound system designed with Harman Kardon, built-in microphone and fanless enclosure.	Built-in stereo speakers with SRS processing and microphone.
Keyboard and mouse
Keyboard and mouse	Apple Pro Keyboard and optical Apple Pro Mouse.	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
Weight
Weight	15.8 kg	–
Width × depth × height
Width × depth × height	381 × 435 × 381 mm	–
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Maker publishes height 38.1, width 38.1 and depth 43.5 cm, weight 15.8 kg. EveryMac instead gives depth 43.4 cm and 15.7 kg; current maker figures are preferred.	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.
Power supply
Power supply	100–260 V AC, 47–63 Hz, single phase; maximum continuous power 150 W.	–
In the box
In the box	Mac OS 9.1, iTunes, iMovie 2 and Disc Burner; CD-RW configurations write music and data CDs but cannot read DVDs. Maker confirms immediate availability on 22 February 2001. Copied PCI-slot/eMac entries in the retained sheet are excluded as unrelated template artifacts.	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.