Actual capacity of a kingston 4GB micro sd card?

Discussion in 'NDS - Flashcarts and Accessories' started by Insane_Cat, Jul 25, 2010.

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  1. Insane_Cat
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    Insane_Cat Member

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    Does a 4GB card actually hold 4 Gigabytes? I know that a lot of times there small print on memory devices saying "actual formatted capacity may be less", so how much space am I really getting?
     
  2. Midna

    Midna Banned

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    Probably about 3.8GB. It's like that with everything.
     
  3. tk_saturn

    tk_saturn GBAtemp Psycho!

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    You''ll have the overhead for the filesystem, and they use 1000's instead of 1,024's.

    4GB * 1000 * 1000 * 1000 = 4,000,000,000
    4,000,000,000 / 1024 / 1024 / 1024 = 3.72GB

    So around 3.7GB.
     
  4. N4RU70 FR34K

    N4RU70 FR34K Banned

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    You're probably getting 3.69 gb that's how much is on mine hope this helps [​IMG]
     
  5. Nimbus

    Nimbus sudo /usr/bin make-me-a-coffee --nosugar --cream=1

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    Probably being lazy.
    See, the thing is.

    Manufacturers usually put on their packaging that say for example 1000 MB = 1GB, or 1 Billion Bytes is 1GB

    This is completely incorrect. 1000 MB =/= 1GB, and 1 Billion Bytes exact isn't a Gigabyte either

    1 GB=1024 MB (mega bytes)
    1 MB=1024 KB(kilobytes)
    1 KB=1024 bytes

    1 GB=1024*1024*1024 bytes

    So, really in fact 1GB = 1073741824 bytes

    So, technically you aren't getting 4GB total. You will probably get about 3.7-3.9 GB out of it.

    See computers process everything in Binary, which goes in sets of octets, or 8's, shown below. This is the correct way to measure capacity on storage devices,

    As much as I wish that manufacturers would not list the capacity in such as decieving way, however who in their right mind would buy a 3.7GB Micro SD.

    This same concept applies to any storage device, thumb drives, hard drives, etc.

    The only thing that usually will have the exact amount are Optical Media such as CD-R/RW/ETC, DVD-R/RW/ETC, Blu-Ray (Lol, good luck finding burnable Blu-Ray Disks let alone burning hardware for them), and other forms of optical media.

    Congrats if anyone beats me to this post, I'll fry you with my Third-Leg later.

    EDIT: tk_saturn, I don't think the overhead has anything to do with the capacity. I may be wrong though.
     
  6. Insane_Cat
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    Insane_Cat Member

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    Thank you everybody, you have confirmed my suspicions.
    I wish that the manufacturers wouldn't lie like this, but it saves them a tiny amount of money.
     
  7. Midna

    Midna Banned

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    It's far worse when they try to sell you a 8Gb MicroSD Card.
     
  8. fearofshorts

    fearofshorts GBAtemp Fan

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    Ugh. I hate it when people sell things in *b.
    Gb is GigaBit. This is roughly 1/8th of a GB (GigaByte).

    We have some pretty stupid units in IT, huh?
     
    ProtoKun7 likes this.
  9. jmleolgq
    This message by jmleolgq has been removed from public view by ProtoKun7, Aug 17, 2013.
    Aug 17, 2013
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