Thank you for buying via links and ads on this site,
which earn me advertising fees or commissions.
As an Amazon Associate I earn from qualifying purchases.

Other World Computing...
B&H Photo...
Amazon
As an Amazon Associate I earn from qualifying purchases.
Upgrade the memory of your 2020 iMac up to 128GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$180 $100
SAVE $80

$699 $479
SAVE $220

$4900 $3000
SAVE $1900

$2299 $1799
SAVE $500

$1798 $1598
SAVE $200

$3505 $2998
SAVE $507

$1099 $999
SAVE $100

$1099 $999
SAVE $100

$2797 $2497
SAVE $300

$1499 $1349
SAVE $150

$1499 $1299
SAVE $200

$2598 $2398
SAVE $200

$3998 $2998
SAVE $1000

$3498 $2998
SAVE $500

$1199 $1099
SAVE $100

$240 $175
SAVE $65

$1499 $1349
SAVE $150

$2799 $2499
SAVE $300

$7999 $6999
SAVE $1000

$250 $210
SAVE $40

$1199 $1099
SAVE $100

$799 $599
SAVE $200

$999 $949
SAVE $50

$1999 $1449
SAVE $550

$2799 $2499
SAVE $300

$449 $389
SAVE $60

$400 $270
SAVE $130

$1699 $999
SAVE $700

OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!

iMac 5K (Late 2015) vs Mac Pro: 64GB Memory Supported

Get iMac 5K at B&H Photo and see also MPG’s computer gear wishlist.
See also diglloyd-recommended performance packages for iMac at OWC.

MPG recommends this iMac 5K: 27" Retina 5K Display, 4.0 GHz Intel Core i7 (Skylake), 1TB Flash, 8GB memory, AMD Radeon R9 M395X GPU (4GB GDDR5) + 32GB or 64GB OWC memory.

OWC 64GB Memory kit for late 2015 iMac 5K

All prior models of the iMac 5K have long been handicapped by a 32GB memory limit, thus forcing professionals to the Mac Pro.

But the late 2015 iMac 5K changes the game by accepting up to 64GB memory, which makes it far more viable for professional photographers like diglloyd, videographers, etc*.

For example, MPG digloyd’s everyday work cannot be done efficiently on a system with only 32GB memory, as the screen shot shows from a late-night image processing job. Observe that Photoshop CC is using 40 GB of real memory. This would be a serious performance problem on a system with only 32GB, yet with other apps also taking memory, even the 64GB system is stressed into using 7.8 GB of compressed memory, as shown.

Apple does not offer a 64GB memory option, but OWC offers a 64GB memory kit that costs only a little more than what Apple upcharges for 32GB, making an awesomely fast Photoshop or Lightroom workstation out of the late 2015 iMac 5K at a far lower price than the Mac Pro.

If the iMac 5K was bought with 8GB or 16GB of memory, here’s the cool thing: Apple now configures that 8GB as 2 X 4GB or 2 X 8GB, thus leaving two memory slots open. For a long time, it was 4 X 2GB or 4 X 4GB, occupying all four slots, so whatever came with the iMac had to be removed. So here’s what’s cool, if a full 64GB is not needed, keep the two modules that come with the 8GB or 16GB iMac 5K, but add 2 X 8GB or 2 X 16GB:

2 X 4GB + OWC 2 X 8GB ===> 24GB
2 X 4GB + OWC 2 X 16GB ===> 40GB
2 X 8GB + OWC 2 X 8GB ===> 32GB
2 X 8GB + OWC 2 X 16GB ===> 48GB

* Some iMac 5K drawbacks remain, name only two Thunderbolt ports (on one bus), which is problematic for multiple displays in particular, but also for multiple high performance devices, or device-to-device copies (bandwidth restrictions). Also, the Mac Pro can go to 128GB for really huge jobs.

Photoshop CC using 39.6 GiB of real memory, 7.8 GiB of compressed memory
OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!
OWC Envoy Pro Elektron

Ultra-high performance across entire capacity, outperforms the competition.

Tiny, bus-powered, rugged, compact!


√ No more slow and noisy hard drives!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!
View all handpicked deals...

Venus Optics Laowa 105mm f/2 Smooth Trans Focus Lens for Sony E
$699 $479
SAVE $220

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__