Why such low RPM HD's?

Discussion in 'Buying Tips and Advice' started by levitynyc, Oct 24, 2006.

  1. levitynyc macrumors 65816

    Joined:
    Aug 19, 2006
    #1
    100GB Serial ATA Drive @ 7200 rpm [Subtract $100]
    160GB Serial ATA Drive @ 5400 rpm
    200GB Serial ATA Drive @ 4200 rpm [Add $100]


    Why doesnt the 160 or 200 GB run at 7200 RPM?
     
  2. Chundles macrumors G4

    Chundles

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    Jul 4, 2005
    #2
    Probably the data is too densely packed on those HDDs to run any faster. Speeds will eventually catch up.
     
  3. rogersmj macrumors 68020

    rogersmj

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    #3
    It's actually mostly heat and power issues. After the screen, the hard drive is the #1 consumer of power in a laptop. The faster it spins, the more power it consumes, and the more heat it generates. There are a few 7200rpm drives for laptops, but they're really expensive and get really hot.
     
  4. Warbrain macrumors 603

    Warbrain

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    #4
    And remember, heat + HDD = terrible mess.
     
  5. robbieduncan Moderator emeritus

    robbieduncan

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    #5
    Because the simple fact is that no one makes 160Gb+ laptop drives that run at 7200rpm. Apple can only use the components available.
     
  6. emotion macrumors 68040

    emotion

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    #6

    I'm fairly sure that 7200rpm drives don't produce appreciably more heat. They are more careful with efficiency in faster drives.
     
  7. negatv1 macrumors 6502

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    MI
    #7
    Where are these faster drives that PC's use?? (they don't exist). Actually this release was the first time I've seen mention of a 200gb 2.5inch SATA drive.
     
  8. emotion macrumors 68040

    emotion

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    #8
    True but there's a soon-to-released 7200 version of the 160GB Seagate Momentus 2.5" SATA drive.
     
  9. Scarlet Fever macrumors 68040

    Scarlet Fever

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    #9
    i only recently heard of 160GB HDDs.

    if you need that kind of storage, you would be much better off with an external HDD. They hold much more, and are a lot cheaper.
     
  10. robbieduncan Moderator emeritus

    robbieduncan

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    #10
    Soon but not now. As it's not available Apple don't list it as an option. Next round of updates when these drives are in plentiful supply then it'll be there.
     
  11. thworple macrumors 6502

    thworple

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    Oct 20, 2005
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    Sussex, England
    #11
    Hmmm, is it just me or is the 7200rpm HDD not available as a BTO on the 15" model (at least its not on the UK Store)? I'm sure you could on the CoreDuo 15" before.

    If this is true, it seems a bit silly.
     
  12. JAT macrumors 603

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    Location:
    Mpls, MN
    #12
    Yeah, it's only there for the 17". That's stupid. I'd love to get the faster drive, I don't need the extra space. Got a big drive at home.
     
  13. BornAgainMac macrumors 603

    BornAgainMac

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    Florida Resident
    #13
    Too bad the 200 GB drive isn't 7200rpm. Be sure to come back and check the forums for the eventual thread of "this drive" vs "that drive" on the Macbook Pro.
     
  14. redeye be macrumors 65816

    redeye be

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    #14
    I thought i read that because of the perendicular positioning of the magnetic things on the drives the data throughput on a (perpendicular) 200 Gb 4200 rpm would be the same as that on a regular 5400 rpm drive.
     
  15. Umbongo macrumors 601

    Umbongo

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    #15
    http://tomshardware.co.uk/2006/10/12/fujitsus_mhv2200bt_uk/index.html has a good review. It's slower overall, and they conclude it's for storage not performance.
     
  16. iSee macrumors 68040

    iSee

    Joined:
    Oct 25, 2004
    #16
    That review is for the Fujitsu 200GB 2.5" drive, but I'm guessing that Apple puts the Toshiba 200GB drive in the macbook pros because the Fujitsu is a non-standard height (12.5mm instead of the standard 9.5mm because it has three platters instead of the typical 2). Unlike the Toshiba, the Fujitsu does not use perpendicular magnetic recording.

    Anyway, what I'm getting at is that maybe the Toshiba 2.5" 200GB 4200 RPM drive performs better than the Fujitsu because of what redeye be said. I hope so, anyway :) .
     
  17. bit density macrumors 6502

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    Seattle
    #17
    There is a limit to the number of bps under the head. The Perpindicular drives have a much higher ariel density, which meant that more bits move under the head at slower speeds. Generally, this is a good thing. There is still a bottlenect due to drive speed in general, but with the next wave of drives (with flash ram) expect the whole drive speed thing to not be so important. And the rest of the components *will* get faster, this is first generation stuff.
     
  18. Scottyk9 macrumors 6502a

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    Location:
    Canada
    #18
    Make sure you consider your needs.

    From barefeats:

    1. The 7200rpm internal drive is NOT significantly faster than the stock 5400rpm when doing small RANDOM reads and writes. That implies that it won't give you much advantage for booting and normal operations.

    3. If you work on audio or video where large blocks are captured or played back, the 7200rpm internal drive of the MacBook has a clear advantage over the stock 5400rpm internal drive.

    http://www.barefeats.com/5472.html
     
  19. Umbongo macrumors 601

    Umbongo

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    England
    #19
    I didn't realise Toshiba had released one. I guess in the end it is worth waiting for reviews, dissections and benchmarks.
     
  20. SkyBell macrumors 604

    SkyBell

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    Texas, unfortunately.
    #20
    Why does anyone care at what speed it runs at? whatever is good enough for me
     
  21. NewSc2 macrumors 65816

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    Orange County, CA
    #21
    Because hard drive speed has an effect on how fast your computer is.
     
  22. Kingsly macrumors 68040

    Kingsly

    #22
    Like this one? :p
     
  23. Butthead macrumors 6502

    Butthead

    Joined:
    Jan 10, 2006
    #23
    Well considering Other World Computing had the Seagate 5.4k Momentus back in January of this year, I wouldn't bet on Apple using the 7.2k Momentus 7200.2 anytime soon. According to Seagate's June '06 announcement, the 7200.2 Momentus is expected to ship in the 1st Q 2007. True the Momentus 5400.3 was over $300 when 1st released, but it soon dropped more than 50% in a few months, same will happen when the 7200.2 comes out. No 7.2k laptop drives do not generate much more heat, they use nearly the same amount of power as 5.4k drives (in some cases less than older 5.4k models).

    Good source of news on laptop storage is at:

    http://laptoping.com/category/laptop-hard-drive/


    Notice in the future, Seagate may offer 1.46TB laptop drives ...woohoo!

    http://www.infoworld.nl/idgns/bericht.phtml?id=002570DE00740E18002571A2004B5DDE

    What I'd really like to see before 128GB NAND flash drives come out later this year, or early next year, is a 10k rpm laptop drive from Seagate (they already have moved to 10k 2.5in drives for the blade server market, it's just a matter of getting them to run on less power ;), cause that would be hotter than a 5.4kk drive ). A 10k laptop drive with 4GB of NAND flash for quick booting.
     

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