iMac 27-inch Technical Specifications

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

Price

Memory

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible

Configurable to 16GB, 32GB, 64GB, or 128GB

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible

Configurable to 16GB, 32GB, 64GB, or 128GB

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible

Configurable to 16GB, 32GB, 64GB, or 128GB

Storage1

256GB

256GB SSD

512GB

512GB SSD

Configurable to 1TB or 2TB SSD

512GB

512GB SSD

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

Graphics

AMD Radeon Pro 5300 with 4GB of GDDR6 memory

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)2

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)

Limited Warranty and Service

Your iMac comes with 90 days of complimentary technical support and a one-year limited warranty. Purchase AppleCare+ for Mac to extend your coverage to three years from your AppleCare+ purchase date and add up to two incidents of accidental damage coverage every 12 months, each subject to a service fee of $99 for screen damage or external enclosure damage, or $299 for other repairable damage, plus applicable tax.

Learn more

In the Box

iMac with 5K Retina display

Magic Keyboard

Magic Mouse

Power cord

Lightning to USB Cable

Polishing cloth

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.

Learn more

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.

Learn more

Features include:

  • Voice Control
  • VoiceOver
  • Zoom
  • Increase Contrast
  • Reduce Motion
  • Siri and Dictation
  • Switch Control
  • Closed Captions
  • Text to Speech
Built-in Apps3
  • App Store
  • Books
  • Calendar
  • Contacts
  • FaceTime
  • Find My
  • GarageBand
  • Home
  • iMovie
  • Keynote
  • Mail
  • Maps
  • Messages
  • Music
  • News
  • Notes
  • Numbers
  • Pages
  • Photo Booth
  • Photos
  • Podcasts
  • Preview
  • QuickTime Player
  • Reminders
  • Safari
  • Siri
  • Stocks
  • Time Machine
  • TV
  • Voice Memos
Configure to Order

Configure your iMac with these options.

Looking for an iMac you can mount on a wall or an adjustable arm? Choose an iMac with a Built-in VESA Mount Adapter

27-inch iMac with 5K Retina display

3.1GHz

Magic Trackpad

Magic Keyboard with Numeric Keypad

16GB, 32GB, 64GB, or 128GB memory upgrade

Nano-texture glass

10Gb Ethernet

27-inch iMac with 5K Retina display

3.3GHz

Magic Trackpad

Magic Keyboard with Numeric Keypad

3.6GHz 10-core Intel Core i9 upgrade

16GB, 32GB, 64GB, or 128GB memory upgrade

1TB or 2TB SSD

Nano-texture glass

10Gb Ethernet

27-inch iMac with 5K Retina display

3.8GHz

Magic Trackpad

Magic Keyboard with Numeric Keypad

3.6GHz 10-core Intel Core i9 upgrade

16GB, 32GB, 64GB, or 128GB memory upgrade

1TB, 2TB, 4TB, or 8TB SSD

AMD Radeon Pro 5700 with 8GB of GDDR6 memory

AMD Radeon Pro 5700 XT with 16GB of GDDR6 memory

Nano-texture glass

10Gb Ethernet

iMac and the Environment

We take responsibility for the environmental footprint of our products throughout their life cycle. Learn more

The 27-inch iMac with 5K Retina display is designed with the following features to reduce its environmental impact:4

Made with better materials

  • 100% recycled tin in the solder of the main logic board
  • Enclosure made with recyclable, low-carbon aluminum
  • 60% recycled plastic in multiple components

Energy efficient

  • Meets ENERGY STAR requirements

Smarter chemistry

  • Arsenic-free display glass
  • Mercury-free LED-backlit display
  • BFR-, PVC-,5 and beryllium-free

Green manufacturing

  • Final assembly supplier sites do not generate any waste sent to landfill6
  • All final assembly suppliers are transitioning to 100% renewable energy for Apple production

Responsible packaging

  • 100% of virgin wood fiber comes from responsibly managed forests

Apple Trade In

Letting go of your old device is easy with Apple Trade In. If it’s in good shape, you can trade it in for Apple Store credit. If it’s not eligible for credit, we’ll recycle it responsibly at no cost to you. Good for you. Good for the planet.

See how it works

Learn more

Read the 27-inch iMac with 5K Retina Display Environmental Report for detailed information on its environmental performance.

Which Mac is right for you?

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