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New 27-Inch iMac Supports Up to 64GB of RAM, OWC Offering Upgrade Kits

Apple's line of newly updated 5K Retina 27-inch iMacs with Skylake will support up to 64GB of RAM, an upgrade from the previous-generation 27-inch Retina iMacs that would only support a maximum of 32GB of RAM. According to OWC, The current 27-inch Retina iMac includes four memory slots that support up to 16GB of memory per slot for a total of 64GB.

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Image via OWC

Build-to-order options for the 27-inch Retina iMacs only allow it to be purchased from Apple with a maximum of 32GB RAM, but OWC will offer 16GB modules in 48GB and 64GB configurations for the new iMac. OWC plans to start selling its new 48 and 64GB kits tomorrow, and pricing is as follows:

- Single 16GB module - $329.99

- 32GB Kit using 16GB x 2 Modules - $599.00

- 48GB Kit with 16GB x 2 + 8GB x 2 - $729.00

- 64GB Kit with 16GB x 4 - $1195.00

The new 27-inch iMacs were announced this morning and are available from Apple retail stores and Apple's online store. Pricing for the machines starts at $1,799 for a 3.2GHz quad-core processor, 8GB RAM, 1TB hard drive, and an AMD Radeon R9 M380 graphics card.

Update: OWC has torn down the new 21.5-inch 4K Retina iMac and has learned that the memory is soldered in, which means it can't be upgraded. Customers purchasing a 21.5-inch Retina iMac should get the maximum amount of memory they can afford at the time of purchase as there will be no third-party upgrade options. The maximum amount of RAM for the 21.5-inch iMac models is 16GB.

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Top Rated Comments

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11 months ago
Most users here don't need 64GB Ram, but what they do need is 64GB storage standard on iOS devices :)
Rating: 35 Votes
11 months ago
I think the 5400rpm HDD is the part that needs upgrading.
Rating: 27 Votes
11 months ago
4000 instances of Safari will be snappier
Rating: 25 Votes
11 months ago
How times have moved on!

Rating: 19 Votes
11 months ago


This is great news until the next version when Apple decides it's too thick and the RAM needs to be built-in to get it just a little thinner!


It always amuses me how people seem to think the iMac is "thin" - yeah - at the EXTREMITIES, but then so am I :D
Rating: 18 Votes
11 months ago
HUGE RAM

Rating: 13 Votes
11 months ago
Me and my Macbook Pro 7,1 with only 8 GB of RAM

Rating: 13 Votes
11 months ago
Skylake without DDR4? What the hell!?
Rating: 13 Votes
11 months ago
not buying until they bring Target Display Mode back. Love the 5K screen, but I want to see other things on it other than the computer inside it. The computer becomes obsolete, but an extra screen will stay useful for a very long time.
Rating: 13 Votes
11 months ago

How times have moved on!


Such happy and simple times. :)
Rating: 11 Votes

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