For these 27-inch models
Get memory specifications for the following iMac models, then find out how to install memory in them:
- iMac (Retina 5K, 27-inch, Mid 2015)
- iMac (Retina 5K, 27-inch, Late 2014)
- iMac (27-inch, Late 2013)
- iMac (27-inch, Late 2012)
Memory specifications
These iMac models feature Synchronous Dynamic Random-Access Memory (SDRAM) slots on the rear of the computer near the vents with these memory specifications:
| Number of memory slots | 4 |
| Base memory | 8 GB |
| Maximum memory | 32 GB |
Use small outline dual inline memory modules (SO-DIMM) that meet all of these criteria:
- PC3-12800
- Unbuffered
- Non-parity
- 204-pin
- 1600 MHz DDR3 SDRAM