Apple iMac (21.5-inch, Late 2013, GeForce graphics)
Yes. 2 slots, up to 16 GB seen working.
It takes DDR3-1600 laptop-size sticks (SO-DIMM). The slots sit inside the case, behind the display, so fitting memory means opening it up. Apple lists it as a service upgrade.
- Slots
- 2 SO-DIMM slots
- Type
- DDR3-1600 204-pin SO-DIMM
- Most seen working
- 16 GB in two or more machines
- Firmware says
- 8 GB maximum (often wrong, so we show what machines run)
- How sure
- 10 of 10 reports show this layout
Worked out from 10 hardware reports of this desktop, with Apple's memory specifications for which Macs have sockets. Sources and method. Updated 10 Nov 2026.
Questions
Can I upgrade the RAM in the Apple iMac (21.5-inch, Late 2013, GeForce graphics)?
Yes. 2 slots, up to 16 GB seen working. It takes DDR3-1600 laptop-size sticks (SO-DIMM). The slots sit inside the case, behind the display, so fitting memory means opening it up. Apple lists it as a service upgrade.
What type of RAM does the Apple iMac (21.5-inch, Late 2013, GeForce graphics) use?
DDR3-1600 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the Apple iMac (21.5-inch, Late 2013, GeForce graphics) take?
Machines in the reports run up to 16 GB. The firmware reports a maximum of 8 GB, a figure that is often wrong.
Is this my desktop?
On the Mac, choose Apple menu > About This Mac > System Report. The Model Identifier should read iMac14,3.
More in the Apple iMac
- iMac (21.5-inch, Mid 2011) (iMac12,1)
- iMac (27-inch, Mid 2011) (iMac12,2)
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- iMac (27-inch, Late 2013) (iMac14,2)
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- iMac (Retina 4K, 21.5-inch, 2017) (iMac18,2)
- iMac (27-inch, Mid 2010) (iMac11,3)