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  1. #1
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    Hard drive transfer speeds

    I have a buffalo 2TB USB 3.0 hard drive & a buffalo 1TB USB 3.0 hard drive & a buffalo PCI card for connections to the hard drive. Two slots on the case and both drives plugged in. A Renesas USB3.0 host controller with up to date drivers. Now what speeds can I expect when copying files between the two by dragging the files? Or is there a better way to do this? I have hundreds of GBs to transfer. At the moment it is variable. Speeds start about 90 MBs per second slowly dropping to 40 MBS. Intel core TM 1.7 860 2.8 GHZ 16 GB ram. TIA

  2. #2
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    90 MBs per second looks pretty good to me.

    I have found TeraCopy to be better than Windows when copying big files.
    Rui
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  3. #3
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    Done some more research. Teracopy a little faster than simple drag & drop and TurboPC faster than both. Obviously the theoretical claims can't be trusted. I expected - erroneously - that because I was dragging & dropping between two buffalo drives I would get better speed.

  4. #4
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    Quote Originally Posted by ruirib View Post
    90 MBs per second looks pretty good to me.

    I have found TeraCopy to be better than Windows when copying big files.
    Thanks for the reply. I am thinking you are correct.

  5. #5
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    I've found for very large transfers to externals (USB 3) that the speed does a long slow slide for some reason. If I go external to internal it usually maintains a more consistent speed. 90 is good, sometimes I'll get up almost to 110 but usually it more in the 70-90 range. You'd need to have SSDs instead of platter drives to take better advantage of USB 3 speed capability.

  6. #6
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    I agree, 90 is not bad.
    I would also limit the amount of files transferred, instead of the whole thing at once.
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