iMac 27-inch

Tech Specs

Display

5K Retina display
27-inch (diagonal) 5K Retina display
5120‑by‑2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)
True Tone technology
Configurable with nano-texture glass

Processor

3.1GHz
3.1GHz 6‑core 10th-generation Intel Core i5, Turbo Boost up to 4.5GHz

3.3GHz
3.3GHz 6‑core 10th-generation Intel Core i5, Turbo Boost up to 4.8GHz
Configurable to 3.6GHz 10-core 10th-generation Intel Core i9, Turbo Boost up to 5.0GHz

3.8GHz
3.8GHz 8‑core 10th-generation Intel Core i7, Turbo Boost up to 5.0GHz
Configurable to 3.6GHz 10-core 10th-generation Intel Core i9, Turbo Boost up to 5.0GHz

Memory

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, 64GB, or 128GB

Storage

256GB SSD

512GB SSD
Configurable to 1TB or 2TB SSD

512GB SSD
Configurable to 1TB, 2TB, 4TB, or 8TB SSD

Graphics

AMD Radeon Pro 5300 with 4GB of GDDR6 memory

AMD Radeon Pro 5500 XT with 8GB of GDDR6 memory
Configurable to AMD Radeon Pro 5700 with 8GB of GDDR6 memory
Configurable to AMD Radeon Pro 5700 XT with 16GB of GDDR6 memory

Video Support and Camera

1080p FaceTime HD camera

Simultaneously supports full native resolution on the built-in display at 1 billion colors and:
One 6016-by-3384 (6K) external display at 60Hz with support for 1 billion colors, or
Two 6016-by-3384 (6K) external displays at 60Hz with support for 1 billion colors (requires AMD Radeon Pro 5700 or AMD Radeon Pro 5700 XT), or
One 5120‑by‑2880 (5K) external display at 60Hz with support for 1 billion colors, or
Two 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or
Two 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colors

Thunderbolt 3 digital video output
Native DisplayPort output over USB‑C
Thunderbolt 2, HDMI, DVI, and VGA output supported using adapters (sold separately)

Audio

Stereo speakers
Studio-quality three-mic array with high signal-to-noise ratio and directional beamforming
3.5 mm headphone jack
Support for “Hey Siri”

Connections and Expansion

3.5 mm headphone jack
SDXC card slot (UHS-II)
Four USB-A ports

Two Thunderbolt 3 (USB-C) ports with support for:

DisplayPort
Thunderbolt (up to 40Gb/s)
USB 3.1 Gen 2 (up to 10Gb/s)
Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)

10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Configurable to 10Gb Ethernet with support for 1Gb, 2.5Gb, 5Gb, and 10Gb Ethernet
Kensington lock slot

Input

Magic Keyboard
Magic Mouse
Configurable with Magic Keyboard with Numeric Keypad
Configurable with Magic Trackpad

Wireless

Wi-Fi
802.11ac Wi-Fi wireless networking
IEEE 802.11a/b/g/n compatible

Bluetooth
Bluetooth 5.0 wireless technology

Size and Weight

Height: 20.3 inches (51.6 cm)
Width: 25.6 inches (65.0 cm)
Stand depth: 8 inches (20.3 cm)
Weight: 19.7 pounds (8.92 kg)

Electrical and Operating Requirements

Line voltage: 100–240V AC
Frequency: 50Hz to 60Hz, single phase
Operating temperature: 50° to 95° F (10° to 35° C)
Relative humidity: 5% to 90% noncondensing
Operating altitude: tested up to 16,400 feet (5000 meters)

Electrical and Operating Requirements

Operating System

macOS
macOS is the most advanced desktop operating system in the world. macOS Big Sur introduces a bold new design and major updates to apps — taking macOS to a new level of power and beauty.

Accessibility

Accessibility features help people with disabilities get the most out of their new iMac. With built-in support for vision, hearing, mobility, and learning, you can create and do amazing things.

Features include:

Voice Control
VoiceOver
Zoom

Increase Contrast
Reduce Motion
Siri and Dictation

Switch Control
Closed Captions
Text to Speech