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How large would the speed difference between a 4096 b and a 64 kb allocation unit size after formatting?

Tags:
  • allocation
  • Formatting
  • Storage
  • Hard Drives
Last response: in Storage
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June 13, 2014 4:12:45 PM

I'm looking to format a 3.5" 640gb drive after a 2.5" drive failed on me. I've never formatted, so "allocation unit size" was a bit foreign. After researching, it seemed the higher the number the more speed, but less space available.

Space isn't that much of an issue, since I have a separate drive with 1tb of space and an external drive with 2tb to fall back on if needed.

Would I notice a difference between 4096 bytes and 64 kilobytes?

And, if you know--

How much space would 4096 bytes take up, and how much space would 64 kilobytes take up?

Thanks for reading, I hope answers can be found!

More about : large speed difference 4096 allocation unit size formatting

Best solution

a b G Storage
June 13, 2014 4:39:33 PM

Format NTFS and select default allocation unit size. This is best for home PC use.

Other sizes are usually only beneficial for specialized applications like SQL servers or storage arrays.
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June 13, 2014 4:56:57 PM

maddogfargo said:
Format NTFS and select default allocation unit size. This is best for home PC use.

Other sizes are usually only beneficial for specialized applications like SQL servers or storage arrays.


I'm mostly looking to use this as a gaming and higher speed drive for resource hogging programs like Photoshop or Mixcraft, if that makes any difference in comparison to a regular "home PC".

EDIT - I just found a thread on another forum about 4kb to 64kb, and it stated there was no discernible difference between the two. I appreciate the response, however.
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