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 2018 Mac mini up to 64GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$3498 $3498
SAVE $click

$3699 $1299
SAVE $2400

$1000 $700
SAVE $300

$3899 $1499
SAVE $2400

$748 $648
SAVE $100

$2999 $1999
SAVE $1000

$1699 $899
SAVE $800

$1698 $1398
SAVE $300

$4499 $3499
SAVE $1000

$1399 $1049
SAVE $350

$1149 $799
SAVE $350

$1399 $1049
SAVE $350

$1498 $1198
SAVE $300

$2797 $2597
SAVE $200

$280 $250
SAVE $30

$1699 $1299
SAVE $400

$8399 $7599
SAVE $800

$899 $799
SAVE $100

$1699 $1299
SAVE $400

2019 Mac Pro: Lightroom Import/Export

MPG tested the $9399 Apple 2019 Mac Pro with 384GB OWC memory vs the top-end $3849 2019 iMac 5K 3.6 GHz Intel Core i9 8-core / Vega 48 with 128GB OWC memory. The memory difference is not a factor in this test.

The support of OWC / MacSales.com and B&H Photo is essential for making these reviews possible.
Please order through our links via these companies and/or subscribe to diglloyd publications.
Mac wish list • Storage wish list • SSD wish list • Ports wish list

Not sure which Mac to get or how to configure it? Consult with MPG Lloyd.

2019 Mac Pro

Lightroom is popular among photographers, with about 90% market share. Key tasks in Lightroom include importing files and exporting JPEGs, with Import the most important and most heavily used, since it always is required.

Fast and cost effective way to backup!

Results: Lightroom Import / Export 100 Sony A7R IV 60-Megapixel raw files

See the diglloyd in-depth review of the Sony A7R IV in diglloyd Mirrorless.

Tests were repeated on two different days with identical results.

The Mac Pro puts in a spectacular pro performance with Lightroom Classic. This is why you buy a pro machine.

For 60-megapixel Sony A7R IV raw files, the 2019 Mac Pro walks all over the 2019 iMac 5K—the iMac 5K takes 2.5X longer to get the job done—WOW!

Kudos to Adobe for stellar usage of CPU cores and overlapping I/O with computation! See the CPU and GPU utilization analysis further below.

The performance difference is impressive, and greater than I would have thought likely. Several factors may apply. The Mac Pro has 3.6X the memory bandwidth, but the under-engineered dual-channel memory of the iMac 5K is inadequate for 8/16t CPU cores (4-core iMac 5K models has similar memory bandwidth with half the cores). Also, with the iMac 5K downclocking to 3.6 GHz for 8 cores versus 3.2 GHz for 16 cores on the 2019 Mac Pro—that’s a 77% difference in computing cycles (3.2*16 / 3.6 * 8). Plus much more cache memory on the Mac Pro to further improve speed of access to memory. Every workload is different, but it seems that Lightroom really loves the Mac Pro architecture.

It seems likely that performance would scale well to a 24 or 28 core CPU because there is no sign of throttling during the entire test.

2019 Mac Pro: Import and Export 552 RAW files

Performance Analysis — CPU and GPU Usage

Kudos to Adobe for stellar usage of CPU cores and overlapping I/O with computation! To nitpick an otherwise perfect performance, maybe the GPU could be used simultaneously to boost speed further, perhaps doubling it? The GPU is not used for either Import or Export.

This performance is as good as it gets for CPU utilization. Based on seeing I/O overlap with computation and the Mac Pro trouncing the iMac 5K so soundly, it suggests that a 24 or 28-core CPU would scale beautifully.

2019 Mac Pro: Adobe Lightroom CPU usage while importing files

 

OWC Envoy Express

World’s first Thunderbolt 3 M.2 NVME SSD enclosure.

Super fast, bus-powered, 3.3 oz, DIY easy, rugged and compact!


See also OWC Express 4M2
√ No more slow and noisy hard drives!
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 Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!

MacPerformanceGuide.com
View all handpicked deals...

Canon EOS 5DS DSLR Camera (Body Only)
$3699 $1299
SAVE $2400

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__