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Thread: took Macbook Pro 10 hours to copy a 3TB drive to another 3TB drive, is that normal?
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Old Feb 13, 2016, 6:06 pm
  #7  
deniah
 
Join Date: Jul 2008
Location: K+K
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Posts: 4,871
Originally Posted by weltfrieden
so my USB hard drives and Macbook are just fine? I guess it didn't help
that at least half of the 3TB contained my family digital photos, ranging
from 2MB(from really old digital cameras from 15 years ago) to 20MB
(current digital camera).
http://www.verbatim.com/UserFiles/Fi...203%20FAQs.pdf

Q. How much faster is SuperSpeed USB 3.0 over USB 2.0?

A. The theoretical transfer speed of USB 3.0 is 4.8 Gbit/s (600MBps) vs. 480 Mbit/s (60MBps) which is a 10X improvement. Sustained transfer speeds (real life) for external hard drives are about 85MBps for USB 3.0 and about 22MBps for USB 2.0, so about a 5X improvement but still a significant advancement in transfer speed.




yes, marginally slower if youre transferring lots of small files. either way, you're in the ballpark of performance. not OOM off
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