Apple iMac 27-Inch “Core i7” 3.8 (5K, 2020; 5700/XT) Specs

Retina 5K, 27-Inch, 2020 – BTO/CTO – iMac20,2A21153442  

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About this Apple iMac

Apple unveiled this iMac model on August 4, 2020. It was released along with the other iMac 27-Inch 2020 models. It is a CTO variant of the iMac 27-Inch “Core i7” 3.8 (5K, 2020). The significant difference this model has is its graphics processor. This iMac model can be equipped with Radeon Pro 5700 graphics processor (8 GB GDDR6 VRAM) or a Radeon Pro 5700 XT graphics processor (16 GB GDDR6 VRAM).

The processor of this model is a 3.8 GHz 64-bit Intel Core i7 processor with 8 independent processor cores which makes this significantly faster than its 2019 iMac predecessors. It features 16 GB of shared L3 cache memory. It has 8 GB of easy-to-upgrade RAM with 4 RAM slots. The default internal storage space of this model is 512 GB onboard SSD. A T2 security chip is present in this model to make it more secure.

It has a widescreen 27-Inch LED-backlit 5K Retina display that boosts the color saturation of your images and videos. Additionally, this model supports True Tone technology which is not available in previous iMac models. It features a studio-quality three-mic array to record your clear recordings with a high signal-to-noise ratio and directional beamforming. It also has a 1080p FaceTime HD webcam to record quality videos.

A stereo speaker system is also installed in this iMac.  It has a wide range of connectivity options, including 4 USB 3.0 ports, 2 Thunderbolt 3 ports (for wired connections), and Gigabit Ethernet, 802.11ac Wi-Fi, Bluetooth 5.0 (for wireless connectivity). These 2020 27-Inch iMac models come with the Apple Magic Keyboard and the multi-touch Magic Mouse 2. This model uses an aluminum case design which is a tapered-edge model.

This model supports the current version of macOS and originally came with the macOS 10.15.6. The RAM is also upgradeable to up to 128 GB. The standard storage could be configured to higher capacities, including 1 TB, 2 TB, 4 TB, or 8 TB SSD. The VRAM can either be 8 GB GDDR6 or 16 GB GDDR6 with varying graphics processors. This model’s mouse and keyboard are also upgradeable.

Processor

3.8 GHz Core i7 (I7-10700K)

Ram

8 GB

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Storage

512 GB SSD

Battery Life

N/A

Storage & Memory

This iMac 27-Inch model features an 8 GB of 2666 MHz DDR4 SD RAM that is upgradeable to 128 GB. It has a shared level 3 cache memory of 16 MB. It has 512 GB SSD standard storage capacity.

Screen Size and Resolution

The screen size of this iMac model is 27-Inch. It is a LED-backlit TFT active matrix Retina 5K display with True Tone technology to provide a better viewing experience. The display resolution is 5120 x 2880. It has 500 nits brightness. The aspect ratio is 16:9. The display of this iMac can be upgraded with Nano texture for an additional cost.

OS & Processor

Apple introduced Core i7 (I7-10700K) 3.8 GHz Comet Lake processor in this iMac. It is a 64-bit 14 nm chip with 8 independent cores. There are two options available for its GPU. One is a Radeon Pro 5700 graphics processor with 8 GB (GDDR6) video memory. The second is Radeon Pro 5700 XT graphics processor with 16 GB (GDDR6) video memory.

You will find this iMac model with a pre-installed macOS of version X 10.15.6 (19G2005). This iMac also supports the current version of macOS Ventura except for the minor Live Captions in FaceTime, Emoji Dictation, and Reference Mode with Sidecar features.

Inclusive Features

  • Intel 10th Generation Core i7 Comet Lake processor
  • Two options are available for the GPU configuration (Radeon Pro 5700/5700 XT)
  • Turbo Boost support
  • Built-in Retina 5K 27-Inch display
  • True Tone compatibility
  • The high native resolution of 5120 x 2880
  • Wide color DCI-P3 gamut
  • Display integration with Nano Texture glass
  • Upgradeable RAM with a total of 4 RAM slots
  • Shared L3 cache of 16 MB
  • Upgradeable storage
  • Security chip T2
  • 1080p FaceTime HD webcam
  • Upgradeable keyboard and mouse
  • 4 USB 3.0 ports and dual Thunderbolt 3 ports (USB-C)
  • Gigabit Ethernet, 802.11ac Wi-Fi (backward compatible), and Bluetooth 5.0
  • Tapered Edge design

 

Introduced: August 4, 2020

Discontinued: March 8, 2022

Screen Size and Resolution

Memory

Screen Size

27″ 16:9 Widescreen

Level 1 Cache

32k/32k x8

Resolution

5120×2880

Level 2/Level 3 Cache

256k x8, 16 MB

Processor

RAM Type

PC4-21300 DDR4

Processors

1 (8 Cores)

Min. RAM Speed

2666 MHz

Architecture

64-Bit

Standard RAM

8 GB

Speed

3.8 GHz

Maximum RAM

128 GB

Type

Core i7 (I7-10700K)

RAM Slots

4

Processor Upgrade

LGA 1200

Motherboard RAM

None

FPU

Integrated

Graphics

System Bus Speed

8 GT/s

Video Card

Radeon Pro 5700/5700 XT

Cache Bus Speed

3.3 GHz (Built-in)

VRAM Type

Dedicated

ROM/Firmware

EFI

Standard VRAM

8 GB, 16 GB

EFI Architecture

64-Bit

Maximum VRAM

16 GB

Storage

Ports

Standard Storage

512 GB SSD

Standard Optical Drive

None

Storage Speed

N/A

Standard Ethernet

10/100/1000Base-T

Storage Dimensions

Soldered

Standard Modem

None

Storage Interface

Soldered

Standard Air Port

802.11ac

Battery

Standard Bluetooth

5.0

Type

N/A

USB Port 3.0

4 (3.0)

Battery Life

N/A

Thunderbolt Ports

2

Description

Keyboard

Magic Keyboard

Case Type

All-in-One

Inclusive Input

Magic Mouse 2

Form Factor

27″ iMac Tapered Edge

S-Video Output

None

Apple Order No

BTO/CTO

Microphone

1 (Built-in)

Apple Subfamily

Retina 5K, 27-Inch, 2020

Headphone

N/A

Apple Model Number

A2115 (EMC 3442)

Sound Out

N/A

Model ID

iMac20,2

Power Adapter

N/A