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Compare iMac Models
  21.5-inch iMac 21.5-inch iMac (Retina 4K) 27-inch iMac (Retina 5K)






Display1

21.5-inch display

1920-by-1080 resolution

320 nits brightness

Standard colour (sRGB)

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-

21.5-inch Retina 4K display

4096-by-2304 resolution

500 nits brightness

Wide colour (P3)

-

-

27-inch Retina 4K display

5120-by-2880 resolution

500 nits brightness

Wide colour (P3)

True Tone Technology

Configurable with nano-texture glass

Processor

Dual-core Intel Core i5

Quad-core Intel Core i3 or
6-core Intel Core i5

6-core Intel Core i5 or
8-core Intel Core i7

Graphics

Intel Iris Plus Graphics 640

AMD Radeon Pro 555X or 560X

AMD Radeon Pro 5300 or 5500 XT

Memory

8GB

8GB

8GB

Storage2

256GB SSD

256GB SSD

256GB or 512GB SSD

Camera

FaceTime HD Camera

FaceTime HD Camera

1080p FaceTime HD Camera

Size and Weight

Height
45.0 cm (17.7 inches)

Width
52.8 cm (20.8 inches)

Stand depth
17.5 cm (6.9 inches)

Weight
5.44 kg (12.0 pounds)3

Height
45.0 cm (17.7 inches)

Width
52.8 cm (20.8 inches)

Stand depth
17.5 cm (6.9 inches)

Weight
5.48 kg (12.1 pounds)3

Height
51.6 cm (20.3 inches)

Width
65.0 cm (25.6 inches)

Stand depth
20.3 cm (8.0 inches)

Weight
8.92 kg (19.7 pounds)3

Other Features

802.11ac Wi-Fi

Bluetooth 4.2

Four USB-A ports

Two Thunderbolt 3 (USB-C) ports

SDXC card slot

Gigabit Ethernet

Magic Keyboard

Magic Mouse 2

802.11ac Wi-Fi

Bluetooth 4.2

Four USB-A ports

Two Thunderbolt 3 (USB-C) ports

SDXC card slot

Gigabit Ethernet

Magic Keyboard

Magic Mouse 2

802.11ac Wi-Fi

Bluetooth 4.2

Four USB-A ports

Two Thunderbolt 3 (USB-C) ports

SDXC card slot (UHS-II)

Gigabit Ethernet

Magic Keyboard

Magic Mouse 2



  iMac Pro Mac Pro Mac Mini






Display1

27-inch Retina 5K display

5120-by-2880 resolution

500 nits brightness

Wide colour (P3)

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-

-

-

-

-

-

-

Processor

10-core Intel Xeon W, configurable to 14-core or 18-core

8-core Intel Xeon W, configurable up to 28-core

Quad-core Intel Core i3 or
6-core Intel i5

Graphics

AMD Radeon Pro Vega 56, configurable to Vega 64 or Vega 64X

AMD Radeon Pro 580X, configurable with up to four AMD Radeon Pro Vega II GPUs

Intel UHD Graphics 630

Memory

32GB, configurable to 64GB, 128GB or 256GB

32GB, configurable up to 1.5TB

8GB

Storage2

1TB SSD, configurable to 2TB or 4TB SSD

256GB, configurable to 8TB SSD

256GB or 512GB SSD

Camera

1080p FaceTime HD Camera

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-

Size and Weight

Height
51.6 cm (20.3 inches)

Width
65.0 cm (25.6 inches)

Stand depth
20.3 cm (8.0 inches)

Weight
9.7 kg (21.5 pounds)3

Height
Tower: 52.9 cm (20.8 inches)
Rack (5U): 22.02 cm (8.67 inches)

Width
Tower: 21.8 (8.58 inches)
Rack: 48.2 cm (18.98 inches)

Depth
Tower: 45.0 cm (17.7 inches)
Rack: 53.95 cm (21.24 inches)

Weight
Tower: 18.0 kg (39.7 pounds)3
Rack: 17.6 kg (38.8 pounds)3

Height
3.6 cm (1.4 inches)

Width
19.7 cm (7.7 inches)

Depth
19.7 cm (7.7 inches)

Weight
1.3 kg (2.9 pounds)3

Other Features

802.11ac Wi-Fi

Bluetooth 5.0

Four USB-A ports

Four Thunderbolt 3 (USB-C) ports

SDXC card slot (UHS-II)


10GB Ethernet

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Space Grey Magic Keyboard with Numeric Keypad

Space Grey Magic Mouse 2

802.11ac Wi-Fi

Bluetooth 5.0

Two USB- 3 ports

Four Thunderbolt 3 (USB-C) ports, configurable up to 12

Eight PCI Express expansion slots

Dual 10GB Ethernet

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Magic Keyboard with Numeric Keypad

Magic Mouse 2 or Magic Trackpad 2

802.11ac Wi-Fi

Bluetooth 5.0

Two USB- 3 ports

Four Thunderbolt 3 (USB-C) ports

-


Gigabit Ethernet

HDMI 2.0 port

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-

Features listed are standard configurations except where noted.

1. Display size is measured diagonally.
2. 1GB = 1 billion bytes and 1TB = 1 trillion bytes; actual formatted capacity less.
3. Weight may vary by configuration and manufacturing process.