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    Need advice..Getting a 500G HDD, 7K750 OR 7K500 ??

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by sklsy, Jul 12, 2011.

  1. sklsy

    sklsy Notebook Guru

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    I'm Getting a 500G HDD and found out that the performance of 500G 7K750 and 7K500 are almost identical at average 82mb/s reading speed..(Due to part of the 750g hardrive being screened to get the 500g).. Can anybody tell me the advantage to get a 7k750?

    The advantage of getting a 7k500 is that I don't have to worry about the aligement of the 4k issue and use my old ghost image(well, maybe an disadvantage not using the modern format?)

    Any thought? Thanks~

    Edward
     
    sklsy, Jul 12, 2011
    #1
  2. jalaj

    jalaj Notebook Geek

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    "7K750 is 750GB
    The first number indicates 7200RPM and the last three numbers indicate storage size."
    I apologize, my initial statements are incorrect.


    The 7k750 - 500GB and 7k500 - 500GB looks similar in spec on the Toshiba website though.
    Only difference is the disk density. I think the 7k500 - 500GB has 3 platters versus the 7k750 - 500GB using two platters.
    They're also both using 512 byte sectors instead of 4KB sectors.

    Less platters and heads probably a safer choice, as less points of failure.
     
    jalaj, Jul 12, 2011
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  3. Phil

    Phil Retired

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    Both drives have two platters. The 7K750 is the faster one due to higher data density.
     
    Phil, Jul 12, 2011
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  4. jalaj

    jalaj Notebook Geek

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    I'm confused, if both are using two platters and are same storage size, wouldn't it be same data density? Unless the 7k750 - 500GB has a smaller platter radius, or using only a smaller portion of the platter for equivalent storage space.
     
    jalaj, Jul 12, 2011
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  5. Phil

    Phil Retired

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    The 7K750 has 375GB per platter. The 7K500 has 250GB per platter.

    The 500GB version of the 7K750 would't use both platters fully indeed.
     
    Phil, Jul 12, 2011
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  6. Nemix77

    Nemix77 Notebook Deity

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    I have the same question.

    From the Hitachi website looks like the 7K750 (25, 27 dBa) is quieter running than the 7K500 (25, 28 dBa).

    Does anyone have first hand comparison between the 7K500 vs 7K750?

    Are they anything like the Scorpio Black BEKT vs BPKT (Advanced Format), where the BPKT aggressively head parks and tuns out a bit slower than the BEKT in real-life situations.
     
    Nemix77, Jul 19, 2011
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  7. Phil

    Phil Retired

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    are you saying the WD7500BPKT is slower than WD5000BEKT?

    Do you have any data to support that? Seems like Techreport says the opposite.
     
    Phil, Jul 19, 2011
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  8. Nemix77

    Nemix77 Notebook Deity

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    It's here somewhere in NBRF, someone said so and you backed him up. I'm not entirely sure if he said it was slower but there had to be some indication for me to have the BEKT being faster than a BPKT imprinted in my head.

    I'll look for it and update.

    Update:

    Whatever, threads in this forum go missing anyway. I wasn't comparing the 500GB to 750GB I'm comparing 500 to 500 the difference only being the AF edition.

    Anyhow it doesn't matter, cause I've decided after everything considered to get a 7K500 or 7K750 (500GB or 750GB) just needed some last minute reassurance.
     
    Nemix77, Jul 19, 2011
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  9. Phil

    Phil Retired

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    Phil, Jul 19, 2011
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  10. Nemix77

    Nemix77 Notebook Deity

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    I didn't get the info from another source other than NBRF plus I don't read German or like translations other than NoteBookCheck.
     
    Nemix77, Jul 19, 2011
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  11. Phil

    Phil Retired

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    Educated guess: Hitachi 7K750 will be marginally faster, quieter and use less power than 7K500.
     
    Phil, Jul 19, 2011
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  12. GP-SE

    GP-SE Notebook Consultant

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    random read/write the 500GB will be faster,
    sequential read/write the 750GB should be faster.
    personally I would just get the 750GB because the extra storage space is nice, and performance between the two wont be noticeable.

    If you want all out performance then the Western Digital Scorpio Black 750 (wd75000bpkt) if the fastest mechanical drive.
     
    GP-SE, Jul 19, 2011
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  13. R3d

    R3d Notebook Virtuoso

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    Both are 500gb hdds.

    I agree with what Phil said. If there's a big price difference I would just go for the 7k500, if there isn't then the 7k750 is probably better.
     
    R3d, Jul 19, 2011
    #13