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Helpful answers
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Jun 9, 2016 3:32 PM in response to mattsheppardby padams35,The only real-world bench mark data I've seen is from 2012 by BareFeats (http://barefeats.com/hard154.html), which means SATA rather than PCIe on the internal and Thunderbolt vs Thunderbolt-2 on the external.
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Jun 9, 2016 3:36 PM in response to mattsheppardby Rudegar,the connection interface should tell you if you connect it by thunderbolt 2 https://en.wikipedia.org/wiki/Thunderbolt_(interface)
but really with thunderbolt external ssd will be as fast as internal unless you speak of pci-express connected in which case you need to check what the disc can delivery in sustained transfer again I doubt your real world performance would be notable between the two
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Jun 12, 2016 12:52 PM in response to mattsheppardby samtenor,★HelpfulThere is one review about thunderbolt external drive's read/write speed, as well USB 3 and PCI-e speeds.
Sam
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Jun 12, 2016 12:57 PM in response to samtenorby mattsheppard,Thanks Sam - That's very helpful - Seems like the internal disk is a _lot_ faster then. Is there a way to overcome that difference (different enclosure? RAID? External PCIe case?
Maybe the real answer is just to pay for the biggest SSD available when ordering the machine and be done with it
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Jun 12, 2016 2:38 PM in response to mattsheppardby samtenor,Hi
What I did - again, wouldl avoid the warranty - was:
I got a HDD iMac 2012, after AppleCare expiration - I replaced the HDD with SSD (SATA 3) with about
500 Mb/s read/write that ball park.
SATA 3 SSD - nowadays, you can easily search the web for the price and their feedback (especially on Mac machines).
I used (ML) rather than (TL) SATA drives.
Sam
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