Apple iMac G3 (Mid 1999) vs Apple iMac G3 (Slot Loading, 1999)

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iMac G3 (Mid 1999) compared with iMac G3 (Slot Loading, 1999)

	AppleiMac G3 (Mid 1999)	AppleiMac G3 (Slot Loading, 1999)
Overview
Released
Released	April 1999	October 1999
Performance
Processor
Processor	PowerPC G3 333 MHz (iMac)	PowerPC G3 350 MHz (iMac) or PowerPC G3 400 MHz (iMac)
CPU cores
CPU cores	1	1
Graphics
Graphics	ATI RAGE Pro Turbo (6 MB)	ATI RAGE 128 VR (8 MB)
Memory
Memory	32 MB or 128 MB	64 MB, 128 MB or 512 MB (better)
Storage
Storage	6 GB	6 GB to 13 GB (better)
CPU
CPU	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.	350 MHz or 400 MHz PowerPC G3 with 100 MHz system bus and 512 KB backside L2 cache. Apple developer history gives 140/160 MHz cache clocks while EveryMac gives 200 MHz for the DV Special Edition; optional cache-clock fields are omitted. Exact processor supplier is not established.
GPU
GPU	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.	ATI RAGE 128 VR with 8 MB video memory and AGP support. Retained sheet says SGRAM while the developer note says SDRAM; memory technology is not silently selected.
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 contemporary Macworld review give 256 MB. The conservative configurations retain the current maker maximum.	PC100 SDRAM in two DIMM slots, up to 512 MB in the retained maker sheet. Base 350 MHz and DV models have 64 MB; DV Special Edition has 128 MB. Configurations retain each base and published maximum with its original processor and drive.
Storage type
Storage type	6 GB ATA hard drive and tray-loading 24x CD-ROM.	350 MHz: 6 GB ATA hard drive and slot-loading 24x CD-ROM, Blueberry. 400 MHz DV: 10 GB and 4x DVD-ROM, five fruit colours. 400 MHz DV Special Edition: 13 GB and 4x DVD-ROM, Graphite. These are configurations of one generation.
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; no fixed LCD native resolution.
Display features
Display features	1024 × 768 at 75 Hz, 800 × 600 at 95 Hz and 640 × 480 at 117 Hz (EveryMac exact-model specification).	Maximum mode 1024 × 768 at 75 Hz; 800 × 600 at 95 Hz and 640 × 480 at 117 Hz (EveryMac exact DV Special Edition 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 12 Mbps USB ports on the computer, 10/100BASE-T Ethernet, 56K V.90 modem, audio line-in/out and two front headphone jacks. Two FireWire 400 ports and VGA video mirroring are present only on DV and DV Special Edition. AirPort card is optional across this generation.
External displays
External displays	–	DV and DV Special Edition mirror the internal display through VGA; the 350 MHz entry configuration has no external video connector.
Speakers
Speakers	Built-in stereo speakers with SRS processing and microphone.	Integrated Harman Kardon Odyssey stereo sound system and built-in microphone. Convection cooling uses no fan.
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.
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 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.	Retained Apple sheet gives height 15.8, width 15.2 and depth 17.6 inches, weight 34.7 pounds. Exact developer note gives height 39.5, width 38 and depth 44 cm and weight 15.5 kg (34 pounds). Disagreeing main dimensions and weight are omitted.
In the box
In the box	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.	Mac OS 8.6 at launch; TIME notes Mac OS 9 would begin shipping subsequently. Conservative October 1999 sale month follows the contemporary physical DV Special Edition reviews; the retained introduction day differs from the launch event date.