Windows 10: Why is my USB 2.0 vs. 3.0 performance the same? Solved

  1.    29 Nov 2017 #1

    Why is my USB 2.0 vs. 3.0 performance the same?


    I created a USB Recovery Drive on a friends ACER Aspire ES1-533-C55P Windows 10 laptop with a 3.0 flash drive that includes Backup system files. The computer was purchased about 3 months ago.
    At first I connected the 3.0 flash drive to a USB 2.0 connector on the right side of the laptop: it two 2 hours.
    Then connected that same 3.0 flash drive to a 3.0 connector on the back of the laptop: it still took two hours.
    According to this article, neither 2.0 or 3.0 USB Flash drives even come close to their advertised speed; however, it does summarize that USB 3.0 reliably comes in at speeds nearly three times as fast as USB 2.0.
    USB 3.0 speed: real and imagined | PCWorld
    --- If that is true, my experiment shouldn't have shown the same time to do the same job: if my math is correct the 3.0 should have taken about 40 minutes.
    --- Any ideas why their performances don't match up with their relative expectations?
      My ComputersSystem Spec

  2.    29 Nov 2017 #2

    Performance will depend on the flash drive - what is the brand/model?

    From http://usb.userbenchmark.com/ you can see cheap USB 3.0 flash drives with write speeds of 8MB/s (well under USB 2.0 speeds) and high end drives with write speeds of 230MB/s.

    You can also run USB Tree View (USB Device Tree Viewer) and see if your drive is properly detected as USB 3.0 (S on the icon indicates Superspeed 3.0, H on the icon indicates High speed 2.0).
      My ComputerSystem Spec


  3. Posts : 1,891
    Win 10 X64 Pro 1803 17751.1
       29 Nov 2017 #3

    I have a number of USB 3 flash drives. Some of them are no faster than USB 2 drives, others are much faster.

    The manufacturers are not required to certify transfer rates.
      My ComputersSystem Spec

  4.    29 Nov 2017 #4

    Are you using USB 3.x cables ?
      My ComputerSystem Spec

  5.    29 Nov 2017 #5

    MeAndMyComputer said: View Post
    At first I connected the 3.0 flash drive to a USB 2.0 connector on the right side of the laptop: it two 2 hours.
    Then connected that same 3.0 flash drive to a 3.0 connector on the back of the laptop: it still took two hours.
    The flash drive I used is
    SanDisk Ultra USB 3.0 16GB.SDCZ48-016G. BL160725494B. KCC-REM-TAD-SDCZ48, D33724.
    --- I included all of the information on the flash drive in case any one of them means anything that counts.
    Now I have to get back to PolarNettles benchmark recommendation.
    I can't control whether or not I'll be buying USB 3.0 (3.X nowadays) that's supposed to be performing better than a USB 2.0 but "whatever".

    EDIT: PolarNettles benchmark recommendation is excellent. It looks like determining better performance USB flash drives is possible after all resulting in buying flash drives with expected performance.
    Last edited by MeAndMyComputer; 30 Nov 2017 at 00:53.
      My ComputersSystem Spec


  6. Posts : 901
    Windows 10
       30 Nov 2017 #6

    Test results from my 3 SanDisk Ultra USB 3.0 32 GB key drives:
    #1 Write 19.5 MBytes/s, Read 107 MBytes/s.
    #2 Write 46.1 MBytes/s, Read 111 MBytes/s.
    #3 Write 12.4 MBytes/s, Read 87.4 MBytes/s.
    Similar Kingston ones:
    #1 Write 23.6 MBytes/s, Read 32.9 MBytes/s.
    Same test of random content 1 GB size files, they would be slower with smaller files.
    As you can see quite a variation in the same drive. It costs more to get anything guaranteed to be faster.
      My ComputerSystem Spec

  7.    30 Nov 2017 #7

    Helmut said: View Post
    As you can see quite a variation in the same drive. It costs more to get anything guaranteed to be faster.
    So true. To me though, the issue was there wasn't any variation in using a USB 3.0 flash drive between using a USB 2.0 port vs. a USB 3.0 port and that's what raised my curiosity of what's going on. On the cost, I'm more interested in performance: thanks to the information posted in this thread, now I can determine which flash drives perform better than others.
    As I mentioned I was working on a friends computer and 2 hours is a lot of time to help them out when I'm expecting less time than that. I'm not in the computer business but I'm a volunteer at our senior center and am willing to help those in need but I really don't want to give my time away. On my home computer, it took me only about 30 minutes to create my USB Recovery Drive when I had gotten my Win10 computer: little did I know I had a much better performance USB 3.0 flash drive. That also was factor in raising my curiosity of what's going on.
      My ComputersSystem Spec

  8.    02 Dec 2017 #8

    Hi folks.

    if you have any spare SSD's that's the best way to make recovery disks etc. With a sata-->USB 3 connector this will simply BLOW any USB stick out of the water with regard to speed -- you won't get anything like the theoretical maximum which is anything up to 3 Gb/s for older type SATA but you'll certainly get speeds of 2 - 300 Mb/s easily.

    If you do a lot of this stuff and value your time buying say a really cheap 120 GB SSD (probably only a few dollars more than a fast sandisk usb 3 stick) will pay humungous dividends in saving you time.

    Cheers
    jimbo
      My ComputerSystem Spec


 

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