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Manny

USB3 vs USB2 - HD

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OK..I got this USB3 Docking station where  I inserted a regular HD 7500RPM (256GB).

 

http://www.amazon.com/gp/product/B005UA3I72/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

 

 

I tried copying over some files..it took a long time.... So I was bummed and decided to test it out using Crystal disk mark and here is what I have. Any of you using USB3 and HD for backups...and what do you get? Are you happy with with USB3 over USB2?

 

I used the USB3 cable that came with the docking station.

 

 

I: USB 2
*************
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 © 2007-2010 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [sATA/300 = 300,000,000 byte/s]
 
           Sequential Read :    34.284 MB/s
          Sequential Write :     4.410 MB/s
         Random Read 512KB :    16.578 MB/s
        Random Write 512KB :     4.600 MB/s
    Random Read 4KB (QD=1) :     0.437 MB/s [   106.8 IOPS]
   Random Write 4KB (QD=1) :     1.171 MB/s [   286.0 IOPS]
   Random Read 4KB (QD=32) :     0.604 MB/s [   147.5 IOPS]
  Random Write 4KB (QD=32) :     1.191 MB/s [   290.8 IOPS]
 
  Test : 1000 MB [i: 32.9% (76.5/232.9 GB)] (x5)
  Date : 2013/05/29 17:46:05
    OS : Windows 7 Home Premium Edition SP1 [6.1 Build 7601] (x64)

 

 

VS

 

I: USB 3 Front
************
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 © 2007-2010 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [sATA/300 = 300,000,000 byte/s]
 
           Sequential Read :    60.035 MB/s
          Sequential Write :     3.699 MB/s
         Random Read 512KB :    28.654 MB/s
        Random Write 512KB :     3.819 MB/s
    Random Read 4KB (QD=1) :     0.446 MB/s [   109.0 IOPS]
   Random Write 4KB (QD=1) :     1.107 MB/s [   270.3 IOPS]
   Random Read 4KB (QD=32) :     0.638 MB/s [   155.8 IOPS]
  Random Write 4KB (QD=32) :     1.124 MB/s [   274.5 IOPS]
 
  Test : 1000 MB [i: 32.9% (76.5/232.9 GB)] (x5)
  Date : 2013/05/29 19:35:30
    OS : Windows 7 Home Premium Edition SP1 [6.1 Build 7601] (x64)

 

 

================================================

Its hardly an improvement! What the  heck!

 

anyway here are other Internal HD and SSD for comparison.

 

 

 

My 2TB HD

 

G: Download
*************
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 © 2007-2010 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [sATA/300 = 300,000,000 byte/s]
 
           Sequential Read :   147.770 MB/s
          Sequential Write :   148.376 MB/s
         Random Read 512KB :    45.190 MB/s
        Random Write 512KB :    81.739 MB/s
    Random Read 4KB (QD=1) :     0.434 MB/s [   106.0 IOPS]
   Random Write 4KB (QD=1) :     1.281 MB/s [   312.8 IOPS]
   Random Read 4KB (QD=32) :     1.299 MB/s [   317.2 IOPS]
  Random Write 4KB (QD=32) :     1.277 MB/s [   311.8 IOPS]
 
  Test : 1000 MB [G: 73.7% (1373.0/1863.0 GB)] (x5)
  Date : 2013/05/29 17:06:01
    OS : Windows 7 Home Premium Edition SP1 [6.1 Build 7601] (x64)
  

 

 

My FSX SSD

 

F: SSD 256GB
*************
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 © 2007-2010 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [sATA/300 = 300,000,000 byte/s]
 
           Sequential Read :   384.422 MB/s
          Sequential Write :   400.679 MB/s
         Random Read 512KB :   255.708 MB/s
        Random Write 512KB :   337.577 MB/s
    Random Read 4KB (QD=1) :    15.395 MB/s [  3758.5 IOPS]
   Random Write 4KB (QD=1) :    56.183 MB/s [ 13716.6 IOPS]
   Random Read 4KB (QD=32) :   190.755 MB/s [ 46571.1 IOPS]
  Random Write 4KB (QD=32) :   147.325 MB/s [ 35967.9 IOPS]
 
  Test : 1000 MB [F: 81.9% (173.7/212.1 GB)] (x5)
  Date : 2013/05/29 17:00:02
    OS : Windows 7 Home Premium Edition SP1 [6.1 Build 7601] (x64)

 

 

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The only thing limited in the USB2 enclosure was the seq read speed which was maxing out at 34 MB/s, that is normal and good for USB2 actually. Moving to USB3 has improved your max seq read to 60MB/s, that was the only improvement you were going to see anyway. Your ageing 256Gb drive just cannot go any faster. Stick it in your PC and test it again and I bet you get similar numbers to the USB3 test.

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Moving to USB3 has improved your max seq read to 60MB/s

 

The primary impetus for getting this was backing up my files faster...but in the write dept, it has not improved at all.. It takes the same  torturous drip drip time. 

 

Very disappointing. 

 

And I am not sure if the HD speed is the weakest link in the chain here.

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