Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Upgrade the memory of your 2019 iMac up to 128GB

2017 iMac Pro: APFS vs HFS SSD Speed

2017 iMac Pro

The data on this page and others was painstakingly obtained, made possible by the support of OWC / MacSales.com and B&H Photo. Please order through our links via these companies and/or subscribe—thank you.

See the MPG recommendations for iMac Pro, backup, peripherals. Not sure which Mac to get or how to configure it? Consult with MPG.

This page compares SSD of the iMac Pro to other Macs.

SSD Speed: APFS vs macOS Extended

Real world speeds through the file system using diglloydTools DiskTester.
disktester run-sequential --test-size 8GB

This graph shows transfer speed across the entire drive capacity. Results were essentially identical with the 1TB and 2TB SSDs.

APFS is essentially identical to HFS for maximum write speed, but lags just slightly for read speed.

Flash Drive (SSD) Sustained Transfer Speed for large transfers across drive capacity, APF vs HFS
2017 iMac Pro
2017 iMac Pro
View all handpicked deals...

Nikon Z 7 Mirrorless Digital Camera (Body Only)
$3397 $2797
SAVE $600

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__