Display
- Retina 5K display
- 27-inch (diagonal) Retina 5K display
- 5120‑by‑2880 resolution with support for one billion colours
- 500 nits brightness
- The wide colour (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
- 3.1GHz
8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, 64GB, or 128GB - 3.3GHz
8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, 64GB, or 128GB - 3.8GHz
8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, 64GB, or 128GB
Storage1
- 3.1GHz
256GB SSD - 3.3GHz
512GB SSD
Configurable to 1TB or 2TB SSD - 3.8GHz
512GB SSD
Configurable to 1TB, 2TB, 4TB, or 8TB SSD
Graphics
- 3.1GHz
Radeon Pro 5300 with 4GB of GDDR6 memory - 3.3GHz
Radeon Pro 5300 with 4GB of GDDR6 memory - 3.8GHz
Radeon Pro 5500 XT with 8GB of GDDR6 memory
Configurable to Radeon Pro 5700 with 8GB of GDDR6 memory, 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 colours and:
- One 6016-by-3384 (6K) external display at 60Hz with support for 1 billion colours, or
- Two 6016-by-3384 (6K) external displays at 60Hz with support for 1 billion colours (requires Radeon Pro 5700 or Radeon Pro 5700 XT), or
- One 5120‑by‑2880 (5K) external display at 60Hz with support for 1 billion colours, or
- Two 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colours, or
- Two 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colours
- 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 2
- Configurable with Magic Keyboard with Numeric Keypad
- Configurable with Magic Trackpad 2
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)
In the Box
- iMac with Retina 5K display
- Magic Keyboard
- Magic Mouse 2
- 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 – Operating System
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 – Accessibility
Features include:
- Voice Control
- VoiceOver
- Zoom
- Increase in Contrast
- Reduce Motion
- Siri and Dictation
- Switch Control
- Closed Captions
- Text to Speech
Built-in Apps3
- Photos
- iMovie
- GarageBand
- Pages
- Numbers
- Keynote
- Siri
- Safari
- Mail
- FaceTime
- Messages
- Maps
- News
- Stocks
- Home
- Voice Memos
- Notes
- Calendar
- Contacts
- Reminders
- Photo Booth
- Preview
- Books
- App Store
- Time Machine
- TV
- Music
- Podcasts
- Find My
- QuickTime Player
- 3.1GHz
- Magic Trackpad 2
- Magic Keyboard with Numeric Keypad
- 16GB, 32GB, 64GB, or 128GB memory upgrade
- Nano-texture glass
- 10Gb Ethernet
- 3.3GHz
- Magic Trackpad 2
- 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
- 3.8GHz
- Magic Trackpad 2
- 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
- Radeon Pro 5700 with 8GB of GDDR6 memory
- 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.
The 27-inch iMac with Retina 5K 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 aluminium
- 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 absolute assembly suppliers are transitioning to 100% renewable energy for Apple production
Responsible packaging
- 100% of virgin wood fibre comes from responsibly managed forests
Learn more
Acoustic Performance
Declared noise emission values by ECMA-109
| Sound Power Level L W A,m (B) | Sound Pressure Level Operator Position Lp A,m (dB) |
---|
Idle | 2.3 (K V = 0.3) | 13 |
---|
Wireless web | 2.3 (K V = 0.3) | 13 |
---|
- L W A,m is the mean A-weighted sound power level, rounded to the nearest 0.1 B.
- Lp A,m is the mean A-weighted sound pressure level measured at the operator position (rounded to the nearest 1 dB).
- 1 B (bel) = 10 dB (decibel)
- K v is the statistical adder for computing upper-limit of A-weighted sound power level.
- The quantity, L W A,c (formerly called L W Ad) may be computed from the sum of L W A,m and K v.
- The Wireless web test browses 25 popular websites.
- Configuration tested: 3.8GHz 8-core Intel Core i7 processor, 8GB memory, 512GB storage, Radeon Pro 5500 XT Graphics