iMac (Retina 5K, 27-inch, 2017)
Specs / Apple / iMac (Retina 5K, 27-inch, 2017)

iMac (Retina 5K, 27-inch, 2017) Specifications

Complete Apple iMac (Retina 5K, 27-inch, 2017) technical specifications · model numbers, colors, storage, dimensions and hardware details.

Chip: 3.4GHz3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8GHz); 3.4GHz quad‑core Intel C… Display: Retina 5K display; 27-inch (diagonal) Retina 5K display; 5120‑by‑2880 resolution with sup… Camera: FaceTime HD camera; Simultaneously supports full native resolution on the built-in displa…
Display
Retina 5K display; 27-inch (diagonal) Retina 5K display; 5120‑by‑2880 resolution with support for one billion…
Chip
3.4GHz3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8GHz); 3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8G…
Storage / Colors
2TB, 256GB, 512GB, 1TB, 3TB · Retina 5K display, 27-inch (diagonal) Retina 5K display, 5120‑by‑2880 resolution with support for one billion colors, 500 nits brightness
Weight / OS
9440 g · macOS

Apple iMac (Retina 5K, 27-inch, 2017) technical specifications

This page contains complete technical specifications for Apple iMac (Retina 5K, 27-inch, 2017), including display, chip, storage, colors, model numbers, dimensions, weight, operating system, connectivity, battery information and other hardware details.

Use this information to compare Apple devices, identify the exact model, check compatibility and verify key hardware features before service, repair, resale or purchase.

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: 20.8 pounds (9.44 kg)2

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)

iOperating System

  • macOS
  • macOS is the operating system that powers everything you do on a Mac. macOS Mojave brings new features inspired by its most powerful users, but designed for everyone. So you can get more out of every click.
  • Learn more about latest operating system

iAccessibility

  • Accessibility features help people with disabilities get the most out of their new iMac. With built-in support for vision, hearing, physical and motor skills, and learning and literacy, you can create and do amazing things.
  • Learn more about Accessibility
  • Features include:
  • VoiceOver
  • Zoom
  • Increase Contrast
  • Reduce Motion
  • Siri and Dictation
  • Switch Control
  • Closed Captions
  • Text to Speech

iIn the Box

  • iMac with Retina 5K display
  • Magic Keyboard
  • Magic Mouse 2
  • Power cord
  • Lightning to USB Cable

iAcoustic Performance

  • Declared noise emission values in accordance with ECMA-109
  • Sound Power LevelL W A,m (B)Sound Pressure LevelOperator PositionL p A,m (dB)Idle2.3 (K V =0.3)15Wireless web2.3 (K V =0.3)15Hard drive seek2.3 (K V =0.3)16
  • L W A,m is the mean A-weighted sound power level, rounded to the nearest 0.1 B.
  • L p A,m is the mean A-weighted sound pressure level measured at 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 quad-core Intel Core i5 processor, 8GB memory, 2TB hard drive, Radeon Pro 580 Graphics.

iAudio

  • Stereo speakers
  • Microphone
  • 3.5 mm headphone jackSupport for Apple iPhone headset with microphone
  • Support for Apple iPhone headset with microphone

iBuilt‑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
  • iTunes
  • Books
  • App Store
  • Time Machine

iConfigure 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.
  • 3.4GHzMagic Trackpad 2Magic Keyboard with Numeric Keypad16GB or 32GB memory upgrade2TB Fusion Drive256GB, 512GB, or 1TB SSD
  • Magic Trackpad 2
  • Magic Keyboard with Numeric Keypad
  • 16GB or 32GB memory upgrade
  • 2TB Fusion Drive
  • 256GB, 512GB, or 1TB SSD
  • 3.5GHzMagic Trackpad 2Magic Keyboard with Numeric Keypad4.2GHz quad-core Intel Core i7 upgrade16GB, 32GB, or 64GB memory upgrade2TB or 3TB Fusion Drive256GB, 512GB, or 1TB SSD
  • 4.2GHz quad-core Intel Core i7 upgrade
  • 16GB, 32GB, or 64GB memory upgrade
  • 2TB or 3TB Fusion Drive
  • 3.8GHzMagic Trackpad 2Magic Keyboard with Numeric Keypad4.2GHz quad-core Intel Core i7 upgrade16GB, 32GB, or 64GB memory upgrade3TB Fusion Drive512GB, 1TB, or 2TB SSD
  • 3TB Fusion Drive
  • 512GB, 1TB, or 2TB SSD

Connections and Expansion

  • 3.5 mm headphone jack
  • SDXC card slot
  • Four USB 3 ports (compatible with USB 2)
  • Two Thunderbolt 3 (USB-C) ports with support for:DisplayPortThunderbolt (up to 40 Gbps)USB 3.1 Gen 2 (up to 10 Gbps)Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)
  • DisplayPort
  • Thunderbolt (up to 40 Gbps)
  • USB 3.1 Gen 2 (up to 10 Gbps)
  • Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)
  • 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
  • Kensington lock slot

iElectrical 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 95% noncondensing
  • Operating altitude: tested up to 10,000 feet

iGraphics

  • 3.4GHzRadeon Pro 570 with 4GB of VRAM
  • Radeon Pro 570 with 4GB of VRAM
  • 3.5GHzRadeon Pro 575 with 4GB of VRAM
  • Radeon Pro 575 with 4GB of VRAM
  • 3.8GHzRadeon Pro 580 with 8GB of VRAM
  • Radeon Pro 580 with 8GB of VRAM

iiMac and the Environment

  • Apple takes a complete product life cycle approach to determining our environmental impact. Learn more about iMac and the Environment
  • iMac is designed with the following features to reduce its environmental impact:
  • Arsenic-free display glass
  • BFR-free
  • PVC-free4
  • Beryllium-free
  • Mercury-free LED-backlit display
  • Recyclable aluminum enclosure
  • Speaker enclosures made with 60 percent post‑consumer recycled plastic
  • Meets ENERGY STAR Version 6.1 requirements
  • Rated EPEAT Gold5
  • Apple and the Environment
  • Learn more about Apple’s dedication to reducing the environmental impact of our products and process. Or read our Product Environmental Reports for detailed information on the environmental performance of every Apple product.
  • Apple GiveBack
  • Letting go of your old Mac is easy with Apple GiveBack. 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

iInput

  • Magic KeyboardMagic Keyboard comes standard with your iMac. It’s wireless and rechargeable (so you won’t be replacing batteries), with an ultracompact, edge-to-edge design that wastes no surface space. It has a stable scissor mechanism, optimized key travel, and a low profile that provide control and comfort. And it pairs immediately with your iMac right out of the box.
  • Magic Keyboard comes standard with your iMac. It’s wireless and rechargeable (so you won’t be replacing batteries), with an ultracompact, edge-to-edge design that wastes no surface space. It has a stable scissor mechanism, optimized key travel, and a low profile that provide control and comfort. And it pairs immediately with your iMac right out of the box.
  • Magic Keyboard with Numeric KeypadYou get all the functionality of Magic Keyboard, with an extended layout that makes it even easier to work and play. The new Magic Keyboard with Numeric Keypad includes document navigation controls — page up, page down, home, and end — and full-size arrow keys that are perfect for navigating pro apps, moving through spreadsheets, and playing games.
  • You get all the functionality of Magic Keyboard, with an extended layout that makes it even easier to work and play. The new Magic Keyboard with Numeric Keypad includes document navigation controls — page up, page down, home, and end — and full-size arrow keys that are perfect for navigating pro apps, moving through spreadsheets, and playing games.
  • Magic Mouse 2Magic Mouse 2 comes standard with your iMac. The design of Magic Mouse 2 lets it glide smoothly across your desk. And since it supports Multi-Touch, you can use simple gestures on its surface to do things such as swipe between web pages and scroll through documents.
  • Magic Mouse 2 comes standard with your iMac. The design of Magic Mouse 2 lets it glide smoothly across your desk. And since it supports Multi-Touch, you can use simple gestures on its surface to do things such as swipe between web pages and scroll through documents.
  • Magic Trackpad 2If you prefer using a trackpad, Magic Trackpad 2 gives you the full range of Multi-Touch gestures and introduces Force Touch to the desktop. Sensors underneath the trackpad surface detect subtle differences in the amount of pressure you apply, bringing more functionality to your fingertips and enabling a deeper connection to your content. This design, along with a low profile, makes it extremely comfortable to use.
  • If you prefer using a trackpad, Magic Trackpad 2 gives you the full range of Multi-Touch gestures and introduces Force Touch to the desktop. Sensors underneath the trackpad surface detect subtle differences in the amount of pressure you apply, bringing more functionality to your fingertips and enabling a deeper connection to your content. This design, along with a low profile, makes it extremely comfortable to use.

iMemory

  • 3.4GHz8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessibleConfigurable to 16GB or 32GB
  • 8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible
  • Configurable to 16GB or 32GB
  • 3.5GHz8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessibleConfigurable to 16GB, 32GB, or 64GB
  • Configurable to 16GB, 32GB, or 64GB
  • 3.8GHz8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessibleConfigurable to 16GB, 32GB, or 64GB

Processor

  • 3.4GHz3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8GHz)
  • 3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8GHz)
  • 3.5GHz3.5GHz quad‑core Intel Core i5 (Turbo Boost up to 4.1GHz)Configurable to 4.2GHz quad-core Intel Core i7 (Turbo Boost up to 4.5GHz)
  • 3.5GHz quad‑core Intel Core i5 (Turbo Boost up to 4.1GHz)
  • Configurable to 4.2GHz quad-core Intel Core i7 (Turbo Boost up to 4.5GHz)
  • 3.8GHz3.8GHz quad‑core Intel Core i5 (Turbo Boost up to 4.2GHz)Configurable to 4.2GHz quad-core Intel Core i7 (Turbo Boost up to 4.5GHz)
  • 3.8GHz quad‑core Intel Core i5 (Turbo Boost up to 4.2GHz)

iStorage1

  • 3.4GHz1TB Fusion DriveConfigurable to 2TB Fusion Drive or 256GB, 512GB, or 1TB SSD
  • 1TB Fusion Drive
  • Configurable to 2TB Fusion Drive or 256GB, 512GB, or 1TB SSD
  • 3.5GHz1TB Fusion DriveConfigurable to 2TB or 3TB Fusion Drive or 256GB, 512GB, or 1TB SSD
  • Configurable to 2TB or 3TB Fusion Drive or 256GB, 512GB, or 1TB SSD
  • 3.8GHz2TB Fusion DriveConfigurable to 3TB Fusion Drive or 512GB, 1TB, or 2TB SSD
  • 2TB Fusion Drive
  • Configurable to 3TB Fusion Drive or 512GB, 1TB, or 2TB SSD

Video Support and Camera

  • FaceTime HD camera
  • Simultaneously supports full native resolution on the built-in display at 1 billion colors and:One 5120‑by‑2880 (5K) external display at 60Hz with support for 1 billion colors, orTwo 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, orTwo 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colors
  • 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)

Wireless

  • Wi-Fi802.11ac Wi-Fi wireless networkingIEEE 802.11a/b/g/n compatible
  • 802.11ac Wi-Fi wireless networking
  • IEEE 802.11a/b/g/n compatible
  • BluetoothBluetooth 4.2 wireless technology
  • Bluetooth 4.2 wireless technology

iMac (Retina 5K, 27-inch, 2017) FAQ

What is the display size of Apple iMac (Retina 5K, 27-inch, 2017)?

Apple iMac (Retina 5K, 27-inch, 2017) has Retina 5K display; 27-inch (diagonal) Retina 5K display; 5120‑by‑2880 resolution with sup….

What chip does Apple iMac (Retina 5K, 27-inch, 2017) use?

Apple iMac (Retina 5K, 27-inch, 2017) uses 3.4GHz3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8GHz); 3.4GHz quad‑core Intel C….

What storage capacities are available for Apple iMac (Retina 5K, 27-inch, 2017)?

Available storage capacities include 2TB, 256GB, 512GB, 1TB, 3TB.