Apple iMac “Core i5″ 2.8 GHz 21.5” 2015 Specs

iMac – MK442LL/A – iMac16,2 – A1418

2015 imac

About this iMac

The Apple iMac Intel Aluminum was released in October 2015. It had some uniqueness of its own from the other models such as the 802.11ac Wi-Fi which is backward compatible with the 802.11 a/b/g/n Wi-Fi. It had a 8 GB of onboard 1867 MHz LPDDR3 SDRAM. The “thick-at-the-middle-thin-at-the edges” design remained the same in this release of the computer just as late 2012, late 2013, and mid 2014 versions. This computer had all the needs of this generation of computing packed into its 45.0 cm, 52.8 cm, 17.5 cm and featured a light weight of 12.5 lbs. (5.68 kg) casing.

Processor

2.8 GHz Intel i5

Ram

8 GB

2015 imac
Storage

1 TBHard Drive

Battery Life

Plugged-in

Storage & Memory

The a1418 iMac device was built with 1 TB Serial ATA (6Gb/s) hard drive storage with a disk speed of 5400 RPM.

Screen Size and Resolution

The iMac Intel Aluminum version featured a 21.5 inch screen 1920×1080 LED-backlit 16:9 widescreen IPS display.

OS & Processor

The iMac had the Mac OS X 10.11 (15A2301) operating system pre-installed on it. It was powered by 14-nm “Broadwell” 2.8 GHz Intel “Core i5” processor (5575R) with four independent processor “cores” on a single chip. Its graphics processor was the “integrated” Intel Iris Pro 6200 graphics processor that shares the system memory.

Memory & Architecture

The device was built with a 4 MB on-chip level 3 cache with an 8 GB of onboard 1867 MHz LPDDR3 SDRAM. Its design was centered on a 64-Bit architecture.

Upgradability

The iMac came with 8 GB of RAM it could be upgraded up to 16 GB of RAM.The Operating System of the iMac can also be upgraded from its pre-installed Mac OS X 10.11 (15A2301) up to the current macOS X. This iMac was also able to run Windows 7 (64-Bit) and more recently Windows 10 (64-Bit).
This iMac had the following dimensions of 45.0 cm, 52.8 cm, 17.5 cm, and a weight of 12.5 lbs. (5.68 kg).

Inclusive Features

The iMac includes the following features and ports:

  • A Power Adapter (100V-240V (50 Hz to 60 Hz, single phase))
  • 802.11ac Wi-Fi
  • Gigabit Ethernet
  • A Mini DisplayPort allowing dual and mirroring operations with resolutions of up to 2560×1600.
  • Stereo Speakers
  • Thunderbolt Ports
  • FaceTime HD webcam

Introduced: October 13, 2015

Discontinued:  June 5, 2017

Screen Size and Resolution

Memory

Screen Size

21.5 inches TFT

Level 1 Cache

32k/32k

Resolution

1920×1080

Level 2/Level 3 Cache

256k x4, 4 MB (on chip)

Processor

RAM Type

LPDDR3 SDRAM

Processors

1 (4 Cores)

Min. RAM Speed

1867MHz

Architecture

64-Bit

Standard RAM

8 GB

Speed

2.8 GHz (Turbo Boost 3.3 GHz)

Maximum RAM

16 GB

Type

Core i5 (I5-5575R)

RAM Slots

None

Processor Upgrade

Soldered

Motherboard RAM

8 GB

FPU

Integrated

Graphics

System Bus Speed

5 GT/s

Video Card

Iris Pro 6200

Cache Bus Speed

2.8 GHz (Built-in)

VRAM Type

Integrated

ROM/Firmware

EFI

Standard VRAM

1.7 GB

EFI Architecture

64-Bit

Maximum VRAM

1.7 GB

Storage

Inclusive Features and Ports

Standard Storage

1 TB HDD

Standard Optical Drive

None

Storage Speed

5400 RPM

Standard Ethernet

10/100/1000Base-T

Storage Dimensions

2.5” (7 mm)

Standard Modem

None

Storage Interface

Serial ATA (6 Gb/s)

Standard AirPort

802.11ac

Battery

Standard Bluetooth

4.0

Type

N/A

USB Port 3.0

4

Battery Life

N/A

FireWire Ports

None

Description

Keyboard

Apple Wireless Keyboard

Case Type

All-in-One

Inclusive Input

Magic Mouse/Trackpad

Form Factor

21.5″ iMac Late 2012

S-Video Output

None

Apple Order No

MK442LL/A

Microphone

1 (Built-in)

Apple Subfamily

Late 2015

Headphone

1

Apple Model Number

A1418 (EMC 2889)

Sound Out

1

Model ID

iMac 16,2

Power

1