iMac - Technical Specifications
Display
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
3.8GHz
3.8GHz 8‑core 10th-generation Intel Core i7, Turbo Boost up to 5.0GHz
Memory
8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
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
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: 51.6 cm (20.3 inches)
Width: 65.0 cm (25.6 inches)
Stand depth: 20.3 cm (8 inches)
Weight: 8.92 kg (19.7 pounds)2
Electrical and Operating Requirements
Line voltage: 100–240V AC
Frequency: 50Hz to 60Hz, single phase
Operating temperature: 10° to 35° C (50° to 95° F)
Relative humidity: 5% to 90% noncondensing
Operating altitude: tested up to 5000 meters (16,400 feet)
Limited Warranty and Service
Your iMac comes with 90 days of free telephone technical support and a one-year limited warranty. For more information, click here.
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 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.
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
- Switch Control
- Closed Captions
- Text to Speech
Built-in Apps3
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 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