Windows 10: Any difference in Thunderbolt vs USB 3.0 external HDD?

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  1. Posts : 893
    Windows 10
       23 Jun 2018 #11

    Most people fail to understand that it is the slowest link in the chain that matters.
    In the case you are quoting it's a Laptop type mechanical HDD.
    So it does not matter whether it's a USB 3.0 or Thunderbolt interface.

    The manufacturers know that they can charge more for a box with a Thunderbolt connection.
    "OK we fooled you, we'll pocket the money, bye, have a nice day".

    You don't have a performance issue/problem. You can see from the examples given that smaller files are much slower read/write speed.
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  2. Bree's Avatar
    Posts : 8,832
    10 Home x64 (1809) (10 Pro on 2nd pc)
       23 Jun 2018 #12

    seymoria said: View Post
    The performance issue I am facing is that at times during data copying, the speed sometimes drops below 1 Mb/sec for some part of the copying only.
    You can see from the speed tests I posted that even for the internal HDD you only get 90MB/s for sequential read/write operations. The three lower rows are for random access tests, typical of copying lots of small files. None of them are greater that about 1MB/s. I'm afraid that's the best you can expect from a 'spinner', however fast the interface is.

    Click image for larger version. 

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  3.    23 Jun 2018 #13

    I think the only solution is to switch to an External SSD Drive with Thunderbolt support. Such a drive is EXTREMELY expensive in the market at present. US$ 630 for 1TB. Can you imagine that??

    https://www.amazon.com/Transcend-Thunderbolt-Solid-StoreJet-TS1TSJM500/dp/B00NV9LTFW/ref=sr_1_1?s=electronics&ie=UTF8&qid=1529759988&sr=1-1&keywords=Transcend+1TB+Thunderbolt+Solid+State+Drive+StoreJet+500+for+MAC

    StoreJetĀ® 500 Portable SSD


    I think I will have to wait for at least 10 years to drop that price within my range.
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  4. storageman's Avatar
    Posts : 439
    Windows 10 Pro 1803 17134.137
       23 Jun 2018 #14

    Bree said: View Post
    You can see from the speed tests I posted that even for the internal HDD you only get 90MB/s for sequential read/write operations. The three lower rows are for random access tests, typical of copying lots of small files. None of them are greater that about 1MB/s. I'm afraid that's the best you can expect from a 'spinner', however fast the interface is.

    Click image for larger version. 

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    Bree

    I have to question your external drive speed. I decided to run similar test that you ran w/Crystal Disk, but I beat the 3.0 #'s that you posted by a bunch. Please disreguard the color & font difference (Haven't run this program for a while but have made many Font changes).

    The Run shown on the upper left is an external USB 3.1 enclosure (Hornettek Jaws 3.5" enclosure) attached to a USB 3.0 rear port. It has a WD black (7200rpm) 2TB drive with 64gb cache. Double the speed your showing on your Toshiba external drive ?

    The run shown on the upper right is of an internal Samsung 500gb EVO drive connected to SATA6. SSD's are fast.

    The last run shown middle bottom is of a Internal SATA1 drive, I believe 8gb cache @ 5400rpm connected to a SATA6 interface.

    I'm on at a loss on the external difference other than the speed of the chipset used in the external unit ?

    What do you think ?
    Attached Thumbnails Attached Thumbnails BenchMarks.jpg  
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  5. Bree's Avatar
    Posts : 8,832
    10 Home x64 (1809) (10 Pro on 2nd pc)
       23 Jun 2018 #15

    storageman said: View Post
    I have to question your external drive speed. I decided to run similar test that you ran w/Crystal Disk, but I beat the 3.0 #'s that you posted by a bunch....

    The Run shown on the upper left is ... a WD black (7200rpm) 2TB drive with 64gb cache. Double the speed your showing on your Toshiba external drive ?

    ...The last run shown middle bottom is of a Internal SATA1 drive, I believe 8gb cache @ 5400rpm connected to a SATA6 interface.

    I'm on at a loss on the external difference other than the speed of the chipset used in the external unit ?
    Quite simply, the external Toshiba I tested is a lower spec drive than your WD Black. It is 5400rpm, same as the laptop's internal HDD I compared it with. The point I was making is that the USB3 interface was not the limiting factor, the drive itself was.

    Toshiba Canvio Basics ext. usb HDD

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    Laptop's internal Seagate HDD

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