Apple iMac Pro (2017) vs Apple Mac Pro (M2 Ultra)

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iMac Pro (2017) compared with Mac Pro (M2 Ultra)

	AppleiMac Pro (2017)	AppleMac Pro (M2 Ultra)
Overview
Released
Released	December 2017	June 2023
Performance
Processor
Processor	Intel Xeon W-2140B, Intel Xeon W-2150B, Intel Xeon W-2170B or Intel Xeon W-2191B	Apple M2 Ultra
CPU cores
CPU cores	8, 10, 14 or 18	24
Graphics
Graphics	Radeon Pro Vega 56 (8 GB HBM2), Radeon Pro Vega 64 (16 GB HBM2) or Radeon Pro Vega 64X (16 GB HBM2)	60-core GPU or 76-core GPU
Memory
Memory	32 GB, 64 GB, 128 GB or 256 GB (better)	64 GB, 128 GB or 192 GB
Storage
Storage	1 TB to 4 TB	1 TB to 8 TB (better)
CPU
CPU	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.	24-core CPU with 16 performance cores and 8 efficiency cores
GPU
GPU	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.	60-core or 76-core GPU; additional graphics cards and MPX modules are not supported
AI engine
AI engine	–	32-core Neural Engine
Memory bandwidth
Memory bandwidth	–	800 GB/s
Memory type
Memory type	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	1 TB SSD, configurable to 2 or 4 TB	1 TB SSD, configurable to 2 TB, 4 TB or 8 TB; two internal SATA connectors up to 6 Gb/s
Media engine
Media engine	–	Hardware-accelerated H.264, HEVC, ProRes and ProRes RAW; two video decode engines, four video encode engines and four ProRes encode and decode engines
Expansion slots
Expansion slots	–	Six full-length PCIe 4.0 slots (two x16 and four x8); one half-length x4 PCIe 3.0 slot with Apple I/O card installed; up to 300 W auxiliary power through two 75 W six-pin and one 150 W eight-pin connectors
Display
Screen size
Screen size	27″	None built in
Resolution
Resolution	5120 × 2880	–
Panel
Panel	IPS LCD	–
Brightness
Brightness	500 nits	–
Display type
Display type	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	Wide colour (P3); supports one billion colours	–
Connections
Ports
Ports	4 × Thunderbolt 3, 4 × USB-A, SD card slot, Ethernet, headphone jack	8 × Thunderbolt 4, 2 × USB-A, 2 × HDMI, 2 × Ethernet, headphone jack
Ethernet
Ethernet	10 Gb/s	10 Gb/s
External displays
External displays	Up to 4	Up to 8 (better)
Wi-Fi
Wi-Fi	802.11ac	Wi-Fi 6E
Bluetooth
Bluetooth	5.0	5.3
Front ports
Front ports	–	Two Thunderbolt 4 ports on top of the tower or at the front of the rack enclosure
Camera
Camera	1080p FaceTime HD	–
Back ports
Back ports	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.	Six Thunderbolt 4 ports with DisplayPort, USB 4 up to 40 Gb/s and USB 3.1 Gen 2 up to 10 Gb/s; two USB-A up to 5 Gb/s; two HDMI; two 10 Gb Ethernet supporting 1, 2.5, 5 and 10 Gb/s; 3.5 mm jack with high-impedance headphone support; additional internal USB-A up to 5 Gb/s
External displays
External displays	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	Up to eight displays at 4K 60 Hz, six at 6K 60 Hz or three at 8K 60 Hz; each HDMI port supports one at 8K 60 Hz or 4K 240 Hz, with VRR, HDR and multichannel audio
Speakers
Speakers	Stereo speakers	Built-in speaker; HDMI multichannel audio output
Microphones
Microphones	Four microphones; supports Hey Siri	–
Keyboard and mouse
Keyboard and mouse	Space grey Magic Keyboard with Numeric Keypad and Magic Mouse 2; optional space grey Magic Trackpad 2	Magic Keyboard with Touch ID and Numeric Keypad, Magic Mouse; optional Magic Trackpad
Design and power
Type
Type	All-in-one	Tower
Weight
Weight	9.7 kg (better)	16.86 kg
Width × depth × height
Width × depth × height	650 × 203 × 516 mm	218 × 450 × 529 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Dimensions include the stand; weight varies by configuration and manufacturing process. Optional VESA mount adapter kit.	Tower with feet is 529 × 218 × 450 mm and 16.86 kg; optional wheels increase height to 557 mm. Rack enclosure is 5U, 220.2 × 482 × 539.5 mm including handles (493.5 mm from fascia), and 17.21 kg; rack depth range 609.6–1,066.8 mm
Power supply
Power supply	100–240 V AC, 50–60 Hz, single phase	Built-in; maximum continuous power 1,280 W at 108–125 V or 220–240 V, or 1,180 W at 100–107 V
Materials
Materials	Recyclable aluminium enclosure; arsenic-free glass and mercury-free LED backlight	70% recycled aluminium in the enclosure
Colours
Colours	–	Silver
In the box
In the box	iMac Pro, space grey Magic Keyboard with Numeric Keypad, space grey Magic Mouse 2, Lightning to USB cable and power lead	Mac Pro, Magic Keyboard with Touch ID and Numeric Keypad, Magic Mouse, 2 m power lead, 1 m USB-C charge cable; rack mount rails included with the rack enclosure, shipped separately