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2017 iMac Pro: APFS vs HFS SSD Speed
Related: 2013 Mac Pro, 2017 iMac 5K, 2017 iMac Pro, 4K and 5K display, computer display, iMac, iMac 5K, iMac Pro, Mac Pro, Macs, SSD, Thunderbolt
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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
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.
Recommended Items for iMac Pro and iMac 5K
See the recommendations page for details on why these items are recommended.