Mac Year

Mac Type

Mac Size

RAM Slot Type

Number of Slots

RAM Speed

Max Memory Supported

2009

Macbook Pro

15”

DDR3

(204 Pin SO-DIMM)

2

PC3-8500 (1066 Mhz)

8GB

(4GB x 2)

2010

Macbook Pro

15”

DDR3

(204 Pin SO-DIMM)

2

PC3-8500 (1066 Mhz)

8GB

(4GB x 2)

2011

Macbook Pro

15”

DDR3

(204 Pin SO-DIMM)

2

PC3-10600 (1333 Mhz)

16GB

(8GB x 2)

2012

Macbook Pro

15”

DDR3

(204 Pin SO-DIMM)

2

PC3-12800 (1600 Mhz)

16GB

(8GB x 2)

2012

Macbook Pro (Retina)

15”

On-board

None

1600Mhz

Can’t be upgraded

2013

Macbook Pro

15”

On-board

None

1600Mhz

Can’t be upgraded

2014

Macbook Pro

15”

On-board

None

1600Mhz

Can’t be upgraded

2015

Macbook Pro

15”

On-board

None

1600Mhz

Can’t be upgraded