iMac 27-inch
Retina 5K display
27-inch (diagonal) Retina 5K 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
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
Graphics
Radeon Pro 5300 with 4GB of GDDR6 memory
Radeon Pro 5300 with 4GB of GDDR6 memory
Radeon Pro 5500 XT with 8GB of GDDR6 memory
Configurable to Radeon Pro 5700 with 8GB of GDDR6 memory
Configurable to 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 Radeon Pro 5700 or 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 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)
Operating System
macOS
macOS is the operating system that powers every Mac. macOS Catalina gives you more of everything you love about Mac. So you can take everything you do above and beyond.
Built-in Apps
- iPhoto
- Pages
- Maps
- Calendar
- Photo Booth
- Game Centre
- Reminders
- iMovie
- Numbers
- iBooks
- FaceTime
- Contacts
- Mac App Store
- Preview
- GarageBand
- Keynote
- Safari
- Messages
- Time Machine
- iTunes
- Notes
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 computer’s purchase date and add up to two incidents of accidental damage coverage, each subject to a service for screen damage or external enclosure damage, or for other repairable damage, plus applicable tax.
In the Box
iMac with Retina 5K display
Magic Keyboard
Magic Mouse 2
Power cord
Lightning to USB Cable
Polishing cloth
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 Retina 5K display
3.1GHz
Magic Trackpad 2
Magic Keyboard with Numeric Keypad
16GB, 32GB, 64GB, or 128GB memory upgrade
Nano-texture glass
10Gb Ethernet
27-inch iMac with Retina 5K display
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
27-inch iMac with Retina 5K display
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