Model Years: Late 2012, Early 2013, Late 2013, Mid 2014,  Late 2015, Mid 2017

Storage: 1TB (HDD)
1TB (Fusion Drive)
256GB (SSD)

Initial OS: OS X 10.8.2 Mountain Lion (Late 2012)

Latest OS:
- macOS 10.15.7 Catalina (Late 2012, Early 2013)
- macOS 11.7.10 Big Sur (Late 2013, Mid 2014)
- macOS 12.7.6 Monterey (Late 2015)
- macOS 13.7.6 Ventura (Mid 2017)

Released: October 23 2012

Discontinued: October 29 2021

Processor:
- Intel Core i5-3300S (Late 2012)
- Intel Core i5-3470S (Late 2012)
- Intel Core i7-3770S (Late 2012)
- Intel Core i3-3225 (Early 2013)
- Intel Core i5-4570R (Late 2013)
- Intel Core i5-4570S (Late 2013)
- Intel Core i7-4770S (Late 2013)
- Intel Core i5-4260U (Mid 2014)
- Intel Core i5-5250U (Late 2015)
- Intel Core i7-5575R (Late 2015)
- Intel Core i5-7360U (Mid 2017)

Graphics:
- Nvidia GeForce GT 640M (Late 2012)
- Nvidia GeForce GT 650M (Late 2012)
- Intel HD Graphics 4000 (Early 2013)
- Intel Iris Pro 5200 (Late 2013)
- Nvidia GeForce GT 750M (Late 2013)
- Intel HD Graphics 5000 (Mid 2014)
- Intel HD Graphics 6000 (Late 2015)
- Intel Iris Pro 6200 (Late 2015)
- Intel Iris Plus Graphics 640 (Mid 2017)

RAM Configurations Sold:
- 8GB PC3-12800 DDR3 RAM 1600MHz (Late 2012, Late 2013)
- 16GB PC3-12800 DDR3 RAM 1600MHz (Late 2012, Late 2013)
- 4GB PC3-12800 DDR3 RAM 1600MHz (Early 2013)
- 8GB LPDDR3 RAM 1600MHz (Mid 2014)
- 8GB LPDDR3 RAM 1867MHz (Late 2015)
- 16GB LPDDR3 RAM 1867MHz (Late 2015)
- 8GB PC3-17000 DDR4 RAM 2133MHz (Mid 2017)
- 16GB PC3-17000 DDR4 RAM 2133MHz (Mid 2017)

Display Specifications:
- 21.5" LCD Display
- 1920 x 1080 display resolution at 102ppi

New Features:
- Removed disc drive
- Thinner body

Model Years: Late 2015, Mid 2017, Early 2019

Storage: 1TB to 2TB (HDD)
256GB to 512GB (SSD)

Initial OS: OS X 10.11 El Capitan (Late 2015)

Latest OS:
- macOS 12.7.6 Monterey (Late 2015)
- macOS 13.7.6 Ventura (Mid 2017)
- macOS 15.5 Sequoia (Early 2019)

Released: October 13 2015

Discontinued: April 20 2021

Processor:
- Intel Core i5-5675R (Late 2015)
- Intel Core i7-5775 (Late 2015)
- Intel Core i5-7400 (Mid 2017)
- Intel Core i5-7500 (Mid 2017)
- Intel Core i7-7700 (Mid 2017)
- Intel Core i3-8100 (Early 2019)
- Intel Core i5-8500 (Early 2019)
- Intel Core i7-8700 (Early 2019)

Graphics:
- Intel Iris Pro 6200 (Late 2015)
- AMD Radeon Pro 555 (Mid 2017)
- AMD Radeon Pro 560 (Mid 2017)
- AMD Radeon Pro 555X (Early 2019)
- AMD Radeon Pro 560X (Early 2019)
- AMD Radeon Pro Vega 20 (Early 2019)

RAM Configurations Sold:
- 8GB LPDDR3 RAM 1867MHz (Late 2015)
- 16GB LPDDR3 RAM 1867MHz (Late 2015)
- 8GB PC4-19200 DDR4 RAM 2400MHz (Mid 2017, Early 2019)
- 16GB PC4-19200 DDR4 RAM 2400MHz (Mid 2017, Early 2019)
- 8GB PC4-21300 DDR4 RAM 2666MHz (Early 2019)
- 16GB PC4-21300 DDR4 RAM 2666MHz (Early 2019)

Display Specifications:
- 21.5" LCD Display
- 1920 x 1080 display resolution at 219ppi
- Retina Display

New Features:
- Removed disc drive
- Thinner body
- 4K Display

Model Years: Late 2012, Late 2013

Storage: 1TB to 3TB(HDD)
 1TB to 3TB(Fusion Drive)
 256GB to 1TB(SSD)

Initial OS: OS X 10.8.2 Mountain Lion (Late 2012)

Latest OS:
- macOS 10.15.7 Catalina (Late 2012)
- macOS 11.7.10 Big Sur (Late 2013)

Released: October 23 2012

Discontinued: May 19 2015

Processor:
- Intel Core i5-3470S (Late 2012)
- Intel Core i5-3470 (Late 2012)
- Intel Core i7-3770 (Late 2012)
- Intel Core i5-4570 (Late 2013)
- Intel Core i5-4670 (Late 2013)
- Intel Core i7-4771 (Late 2013)

Graphics:
- Nvidia GeForce GTX 660M (Late 2012)
- Nvidia GeForce GTX 675MX (Late 2012)
- Nvidia GeForce GTX 680MX (Late 2012)
- Nvidia GeForce GT 755M (Late 2013)
- Nvidia GeForce GTX 775M (Late 2013)
- Nvidia GeForce GTX 780M (Late 2013)

RAM Configurations Sold:
- 8GB PC3-12800 DDR3L RAM 1600MHz (Late 2012, Late 2013)

Display Specifications:
- 27" LCD Display
- 2560 x 1440 display resolution at 109ppi

New Features:
- Removed disc drive
- Thinner body

Model Years: Late 2014, Mid 2015, Late 2015, Mid 2017, Early 2019, Mid 2020

Storage: 1TB(HDD)
 1TB to 3TB(Fusion Drive)
 256GB to 8TB(SSD)

Initial OS: OS X 10.10 Yosemite (Late 2014)

Latest OS:
- macOS 11.7.10 Big Sur (Mid 2014, Mid 2015)
- macOS 12.7.6 Monterey (Late 2015)
- macOS 13.7.6 Ventura (Mid 2017)
- macOS 15.5 Sequoia (Early 2019)
- Currently Supported (Mid 2020)

Released: October 16 2014

Discontinued: March 8 2022

Processor:
- Intel Core i5-4690 (Mid 2014)
- Intel Core i7-4790K (Mid 2014)
- Intel Core i5-4590 (Mid 2015)
- Intel Core i5-6500 (Late 2015)
- Intel Core i5-6600 (Late 2015)
- Intel Core i7-6700K (Late 2015)
- Intel Core i5-7500 (Mid 2017)
- Intel Core i5-7600 (Mid 2017)
- Intel Core i5-7600K (Mid 2017)
- Intel Core i7-7700K (Mid 2017)
- Intel Core i5-8500 (Early 2019)
- Intel Core i5-8600 (Early 2019)
- Intel Core i5-9600K (Early 2019)
- Intel Core i9-9900K (Early 2019)
- Intel Core i5-10500 (Mid 2020)
- Intel Core i5-10600 (Mid 2020)
- Intel Core i7-10700K (Mid 2020)
- Intel Core i9-10910 (Mid 2020)

Graphics:
- AMD Radeon R9 M290X (Late 2014)
- AMD Radeon R9 M295X (Late 2014)
- AMD Radeon R9 M290 (Mid 2015)
- AMD Radeon R9 M380 (Late 2015)
- AMD Radeon R9 M390 (Late 2015)
- AMD Radeon R9 M395 (Late 2015)
- AMD Radeon R9 M395X (Late 2015)
- AMD Radeon Pro 570 (Mid 2017)
- AMD Radeon Pro 575 (Mid 2017)
- AMD Radeon Pro 580 (Mid 2017)
- AMD Radeon Pro 570X (Early 2019)
- AMD Radeon Pro 575X (Early 2019)
- AMD Radeon Pro 580X (Early 2019)
- AMD Radeon Pro Vega 48 (Early 2019)
- AMD Radeon Pro 5300 (Mid 2020)
- AMD Radeon Pro 5500XT (Mid 2020)

RAM Configurations Sold:
- 8GB PC3-12800 DDR3L RAM 1600MHz (Late 2014, Mid 2015)
- 8GB PC3-14900 DDR3 RAM 1867MHz (Late 2015)
- 8GB PC4-19200 DDR4 RAM 2400Mhz (Mid 2017)
- 16GB PC4-19200 DDR4 RAM 2400Mhz (Mid 2017)
- 32GB PC4-19200 DDR4 RAM 2400Mhz (Mid 2017)
- 64GB PC4-19200 DDR4 RAM 2400Mhz (Mid 2017)
- 8GB PC4-19200 DDR4 RAM 2666Mhz (Early 2019, Mid 2020)
- 16GB PC4-19200 DDR4 RAM 2666Mhz (Early 2019, Mid 2020)
- 32GB PC4-19200 DDR4 RAM 2666Mhz (Early 2019, Mid 2020)
- 64GB PC4-19200 DDR4 RAM 2666Mhz (Early 2019, Mid 2020)
- 128GB PC4-19200 DDR4 RAM 2666Mhz (Mid 2020)

Display Specifications:
- 27" LCD Display
- 2560 x 1440 display resolution at 218ppi
- Retina Display

New Features:
- Removed disc drive
- Thinner body
- Improved displays