Just hours after Apple announced its updated iMac lineup earlier this month, the Rocket Yard was able to confirm that the new Late 2015 27-inch Retina 5K model supports up to 64GB of memory via its MaxRAM certification program.
OWC now offers kits up to 64GB, utilizing modules of up to 16GB per slot for up to double the maximum memory offered via Apple factory options.
And now that we’ve had some additional time to put the new iMac through its paces, we wanted to share what we found when testing it with different memory configurations. We ran a memory-intensive Diglloyd Photoshop Huge test with 8GB, 16GB, 24GB, 32GB, 48GB and 64GB OWC memory configurations in a 27-inch iMac with the following specs:
- 3.2GHz quad-core Intel Core i5 processor
- Turbo Boost up to 3.6GHz
- 8GB (two 4GB) memory, configurable up to 32GB
- 1TB Fusion Drive
- AMD Radeon R9 M390 with 2GB video memory
- Retina 5K 5120-by-2880 P3 display
Check out the chart below to see what we found with different memory configurations (click image for larger version).As you can see, there are huge performance gains when adding more memory to the Late 2015 27-inch iMac with Retina 5K display.
To get the best performance from your Mac, check out OWC’s complete selection of memory upgrades here: eshop.macsales.com/shop/apple/memory/
Rocket Yard tears down Late 2015 iMacs
See our teardown and unboxing of the new 27-inch iMac with Retina 5K display here: https://eshop.macsales.com/blog/33572-owc-unboxes-tears-down-the-late-2015-27-inch-imac-retina-5k
And for our teardown and unboxing of the new 21.5-inch iMac with Retina 4K display, click here: eshop.macsales.com/blog/33640-owc-tears-down-21-5-inch-imac-retina-4k-confirms-memory-is-soldered