Will my MBP RAM fit a 27" iMac???

[Bronze84]

Hi guys

Wanting to upgrade from my Oct 2012 MBP 13" to a 27" iMac.

I have 16gb RAM in my MBP but will only be ordering the iMac with 8gb RAM. Is it possible to swap the RAM in them both so that the iMac has 16gb?

Couple of screenshots if this helps at all....





Thanks in advance

 

[cruisin]

Both use laptop parts and the memory speeds are the same. You will be fine with reusing the memory.

 

[SaSaSushi]

I'm fairly sure Apple started using DDR3L (1.35V) RAM in the Late 2012 MacBook Pros but I would check to be sure.

The Late 2013 iMacs are extremely finicky with RAM and, although Apple lists DDR3 on their memory specs, run much better with the lower voltage RAM particularly with 32GB.

 

[thedeske]

I'm fairly sure Apple started using DDR3L (1.35V) RAM in the Late 2012 MacBook Pros but I would check to be sure.

Good catch DDR3 vs DDR3L - mid to late 2012 laptops - exception the Mid 2012 Retina is 3L
The late 2013 imac is DDR3 - not 3L

Possible it will work, but tread carefully & test first

In past years, same season MBPs and iMacs were an easy swap, but a slight dip in voltage can be tricky.

 

[SaSaSushi]

The late 2013 imac is DDR3 - not 3L

The Late 2013 Haswell iMacs run best with 1.35V RAM. Take it from someone who went on a very long and difficult journey through many brands and voltages before getting 32GB to run stably.

See here and here for more info.

As mentioned, Apple inexplicably lists DDR3 on it's memory upgrade page for the Late 2013 iMac while shipping them with DDR3L only.