Apple iMac “Core i5″ 1.6 GHz 21.5” 2015 Specs

iMac – MK142LL/A – iMac16,1 – A1418

2015 imac

About this iMac

The Apple iMac Intel Aluminum released October 13, 2015, 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 an 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 in late 2012, late 2013, and mid-2014 versions. This a1418 iMac had all the needs of this generation of computing packed into its 45.0 cm, 52.8 cm, 17.5 cm and featured a lightweight of 12.5 lbs. (5.68 kg)casing.

Processor

1.6 GHz Intel i5

Ram

8 GB

2015 imac
Storage

1 TBHard Drive

Battery Life

Plugged-in

Storage & Memory

The 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” 1.6 GHz Intel “Core i5” processor (5250U) with two independent processor “cores” on a single chip. Its graphics processor was the “integrated” Intel HD Graphics 6000 graphics processor that shares system memory.

Memory & Architecture

The device was built with a 3 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 11. 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 x2, 3 MB (on chip)

Processor

RAM Type

LPDDR3 SDRAM

Processors

1 (2 Cores)

Min. RAM Speed

1867 MHz

Architecture

64-Bit

Standard RAM

8 GB

Speed

1.6 GHz (Turbo Boost 2.7 GHz)

Maximum RAM

16 GB

Type

Core i5 (I5-5250U)

RAM Slots

No

Processor Upgrade

Soldered

Motherboard RAM

8

FPU

Integrated

Graphics

System Bus Speed

5 GT/s

Video Card

HD Graphics 6000

Cache Bus Speed

1.6 GHz (Built-in)

VRAM Type

Integrated

ROM/Firmware

EFI

Standard VRAM

1.5 GB

EFI Architecture

64-Bit

Maximum VRAM

1.5 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

MK142LL/A

Microphone

2 (Built-in)

Apple Subfamily

Late 2015

Headphone

1

Apple Model Number

A1418 (EMC 2889)

Sound Out

1

Model ID

iMac16,1

Power

1