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A comment on iMac Pro Available Now. Parent comment

Re:iMac Pro Available Now by icedchai on Thursday December 14, 2017 @09:56AM (#15922678)
530MB/sec is what you would expect from a SATA3 SSD. Are you sure you're looking at the right product?

Right. No difference at all. If you're editing hours of high resolution video, you're going to notice the difference.

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Re:iMac Pro Available Now by bufferoverflow on Thursday December 14, 2017 @05:15PM (#15927689)
Video is one of a few examples when a faster SSD could make a difference. Any non-trivial operations you do on the video will still be bound by the CPU. 530MB/s is enough to completely read a 5GB video into RAM in under 10 seconds. That's orders of magnitude faster than you can edit it and then render it.
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