Apple iMac G3 (Summer 2001) vs Apple iMac Pro (2017)

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iMac G3 (Summer 2001) compared with iMac Pro (2017)

	AppleiMac G3 (Summer 2001)	AppleiMac Pro (2017)
Overview
Released
Released	July 2001	December 2017
Performance
Processor
Processor	PowerPC G3 500 MHz (iMac), PowerPC G3 600 MHz (iMac) or PowerPC G3 700 MHz (iMac)	Intel Xeon W-2140B, Intel Xeon W-2150B, Intel Xeon W-2170B or Intel Xeon W-2191B
CPU cores
CPU cores	1	8, 10, 14 or 18
Graphics
Graphics	ATI RAGE 128 Ultra (16 MB)	Radeon Pro Vega 56 (8 GB HBM2), Radeon Pro Vega 64 (16 GB HBM2) or Radeon Pro Vega 64X (16 GB HBM2)
Memory
Memory	128 MB, 256 MB or 1 GB	32 GB, 64 GB, 128 GB or 256 GB (better)
Storage
Storage	20 GB to 60 GB	1 TB to 4 TB (better)
CPU
CPU	500, 600 or 700 MHz PowerPC G3 with 256 KB on-chip L2 cache at processor speed; 100 MHz system bus. Clock-only chip records do not infer a silicon supplier.	Xeon W at 3.2 GHz with 8 cores (Turbo Boost 4.2 GHz), 3.0 GHz with 10 cores (4.5 GHz), 2.5 GHz with 14 cores (4.3 GHz) or 2.3 GHz with 18 cores (4.3 GHz). Exact W-B CPU identities follow Geekbench. The 8/10-core versions launched first; Macworld reports later January 2018 availability for 14/18-core options. Apple changed the standard configuration to 10 cores in August 2020.
GPU
GPU	ATI RAGE 128 Ultra with 16 MB SDRAM in every configuration; AGP 2x.	Radeon Pro Vega 56 with 8 GB HBM2, optionally Vega 64 or Vega 64X with 16 GB HBM2. Vega 64X is a later option included in Apple’s current specification sheet, absent from the launch reviews.
Memory type
Memory type	500 MHz: 128 MB; 600/700 MHz: 256 MB PC100 SDRAM. Two DIMM slots support up to 1 GB. The configurations preserve the base processor/drive ties at base and maximum memory.	Quad-channel 2666 MHz DDR4 ECC; 32 GB standard, configurable to 64/128/256 GB. The current maker sheet includes the later 256 GB option; launch reviews cover up to 128 GB. No user-accessible memory door.
Storage type
Storage type	500 MHz: 20 GB, Indigo or Snow. 600 MHz: 40 GB, Snow or Graphite. 700 MHz Special Edition: 60 GB, Snow or Graphite. All have an 8x/4x/24x CD-RW drive; no DVD reading. Apple says 500/600 MHz available immediately on 18 July; 700 MHz expected in August.	1 TB SSD, configurable to 2 or 4 TB
Display
Screen size
Screen size	15″	27″
Resolution
Resolution	1024 × 768	5120 × 2880 (better)
Panel
Panel	–	IPS LCD
Brightness
Brightness	–	500 nits
Refresh rate
Refresh rate	75 Hz	–
Display type
Display type	15-inch nominal shadow-mask CRT, 13.8-inch viewable diagonal and 0.28 mm dot pitch.	LED-backlit Retina 5K display; IPS panel confirmed by EveryMac. Native refresh rate omitted because Apple does not publish it in the specification sheet.
Display features
Display features	1024 × 768 at 75 Hz, 800 × 600 at 95 Hz and 640 × 480 at 117 Hz. Main refresh describes the highest-resolution mode.	Wide colour (P3); supports one billion colours
Connections
Ports
Ports	2 × USB-A, Ethernet, 2 × headphone jack	4 × Thunderbolt 3, 4 × USB-A, SD card slot, Ethernet, headphone jack
Ethernet
Ethernet	0.1 Gb/s	10 Gb/s (better)
External displays
External displays	–	Up to 4
Wi-Fi
Wi-Fi	–	802.11ac
Bluetooth
Bluetooth	–	5.0
Camera
Camera	–	1080p FaceTime HD
Front ports
Front ports	Two headphone jacks.	–
Back ports
Back ports	Two FireWire 400 ports, two USB ports at 12 Mbps each, VGA mirroring, 10/100BASE-T Ethernet, 56K V.90 modem and audio line-in/out. Keyboard USB ports are excluded from chassis counts. Optional 11 Mbps AirPort card; not built-in wireless.	Four USB-A ports; four Thunderbolt 3 USB-C ports with DisplayPort 1.2, Thunderbolt up to 40 Gb/s and USB 3.1 Gen 2 up to 10 Gb/s; UHS-II SDXC, Nbase-T Ethernet supporting 1/2.5/5/10Gb and 3.5 mm headphone jack. Thunderbolt 2, HDMI, DVI and VGA require adapters.
External displays
External displays	VGA output mirrors the built-in screen.	Two 5120 × 2880 displays at 60 Hz with one billion colours, four 3840 × 2160 displays at 60 Hz with one billion colours, or four 4096 × 2304 displays at 60 Hz with millions of colours, alongside the built-in display
Speakers
Speakers	Odyssey stereo sound system designed with Harman Kardon; built-in microphone.	Stereo speakers
Microphones
Microphones	–	Four microphones; supports Hey Siri
Keyboard and mouse
Keyboard and mouse	Apple Pro Keyboard and optical Apple Pro Mouse.	Space grey Magic Keyboard with Numeric Keypad and Magic Mouse 2; optional space grey Magic Trackpad 2
Design and power
Type
Type	All-in-one	All-in-one
Weight
Weight	15.8 kg	9.7 kg (better)
Width × depth × height
Width × depth × height	381 × 435 × 381 mm	650 × 203 × 516 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.	Dimensions include the stand; weight varies by configuration and manufacturing process. Optional VESA mount adapter kit.
Power supply
Power supply	Maximum continuous power 150 W.	100–240 V AC, 50–60 Hz, single phase
Materials
Materials	–	Recyclable aluminium enclosure; arsenic-free glass and mercury-free LED backlight
In the box
In the box	Mac OS 9 and Mac OS X supplied with iTunes, iMovie 2 and Disc Burner. Later software revisions described in reviews are not launch firmware.	iMac Pro, space grey Magic Keyboard with Numeric Keypad, space grey Magic Mouse 2, Lightning to USB cable and power lead