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iMac 5K (Late 2015): Flash Drive (SSD)
Save money on 32GB or 64GB OWC memory (about $400 savings vs Apple!)
It’s worth paying for the Apple 1TB flash drive—wow!
Sustained transfer speed, large transfers
The late 2015 iMac 5K Retina has a stunningly fast flash drive (SSD) that trounces the flash drive in the 2014 iMac 5K.
2013 Mac Pro: writes at ~930 MiB/sec and reads at ~1180 MiB/sec.
(early 2014 build, 2015 builds may be faster)
2014 iMac 5K: writes at ~716 MiB/sec and reads at ~766 MiB/sec.
2015 iMac 5K: writes at ~1520 MiB/sec and reads at ~2080 MiB/sec.
One reader reports that the 2013 Mac Pro built in 2015 may have a faster flash drive than shown here—this seems likely but MPG has not confirmed it.
Sustained transfer speed vs transfer size
Transfer speed with 32K transfers is about 750 MB/sec, which is outstanding, and well beyond the bus speed of any SATA 6G SSD. Wow! It is also very important for many tasks which make small transfers (including file copying). But it gets even better: speed picks up even more with larger transfers.
$2499 SAVE $300 = 10.0% Apple 15.4" MacBook Pro with Touch Bar (Mid 2018, Space Gray) in Computers: Apple Macs
$4599 SAVE $400 = 8.0% Apple 27" iMac Pro with Retina 5K Display (Late 2017) in Computers: Apple Macs
$5899 SAVE $500 = 7.0% $99 FREE ITEMS Apple 27" iMac Pro with Retina 5K Display (Late 2017) in Computers: Apple Macs
$20 SAVE $20 = 50.0% Magnus DX-3320M Deluxe Photo Tripod/Monopod With 3-Way Head in Accessories: Tripods and Support
$100 SAVE $55 = 35.0% Samsung 500GB T5 Portable Solid-State Drive (Blue) in Computers: Drives and Storage