1.    27 Jul 2015 #1
    Join Date : Mar 2015
    Warren, Ohio
    Posts : 70
    Windows 10 x64

    Nearly Full SSD VS HDD

    If i were to nearly fill my SSD, and it were to slow down. how would that perform compared to a non full HDD? would it make the SSD slower than the HDD? or would it still be faster?
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  2.    28 Jul 2015 #2
    Join Date : May 2015
    Central IL
    Posts : 2,554
    EL Capitan

    Neither would matter how many 1's and 0's are stored on them. SSD's perform faster, because the data is stored in NVRAM vs that platters store the data via polarity for the 1's and 0's.

    Both will still reserve a section of the storage for bad sectors & temporary storage of data as asked by the OS to load.
      My System SpecsSystem Spec

  3.    28 Jul 2015 #3

    Hi there

    A simpler explanation -- SSD's have no moving parts so even a large SSD the data can be found VERY Quickly -- the data is in the form of an address and it can be found and accessed very quickly. It doiesn't matter how full or empty the SSD is.

    An HDD is a ROTATING device so the system after decoding WHERE on the HDD the data actually exists a finite time is taken to rotate the HDD to the correct position for the read heads to actually READ the data.

    These times might be small but they are 100,000's times SLOWER than the virtually instantaneous mechanism of the SSD. (No rotational delay etc).

    In addition apart from the delay caused by the mechanics of a rotating device the actual data transfer is much slower than on an SSD.

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  4.    28 Jul 2015 #4
    Join Date : Mar 2015
    Warren, Ohio
    Posts : 70
    Windows 10 x64

    So then i should be able to get near filling it without the SSD slowing down at all?
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  5.    28 Jul 2015 #5
    Join Date : Jul 2014
    Posts : 6,738
    All kinds

    Quote Originally Posted by Hal0freak View Post
    So then i should be able to get near filling it without the SSD slowing down at all?
    It may slow down on HDD as well as SSD, Windows need some empty space to work properly anyway. 15 -20% (or 10 GB) is highly recommended. Drive itself may not slow down but Windows will and will nag you about it often if there's no enough of available space. Some SSDs automatically reserve some space that you'll never see for it's automatic maintenance (Over provisioning) but some don't. Pay attention to real space used, it may not be exact if you look at it with standard Windows tools.
      My System SpecsSystem Spec


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