Does the RPM really make much difference?

Discussion in 'MacBook Pro' started by graymccarty, Jun 17, 2007.

  1. graymccarty macrumors member

    graymccarty

    Joined:
    Jun 5, 2007
    Location:
    Toronto, ON
    #1
    Hello,

    Im buying a new laptop for University next week, and I'm in a pickle.

    I really want a MacBook, (mainly due to the price) but I would def. like a memory upgrade. I'm thinking that I will upgrade to 200GB, however I noticed that by doing this, you're also lowering the RPM. (From 5400 RPM to 4200 RPM) Question - is this something that's actually noticeable?

    On the same note, would you recommending upgrading the memory in a MacBook and sacrificing the RPM, or changing and going for the MacBook Pro and getting decent RPM with decent memory?


    Many thanks!
     
  2. Mac-Addict macrumors 65816

    Mac-Addict

    Joined:
    Aug 30, 2006
    Location:
    London
    #2
    Yeah personally I have a 5400rpm 120gb in my MBP and it is quite slow at accessing files or doing iMovie work compared it to some of the MBPs in my local Apple store, I wish I had got a 7200rpm drive. I would recommend an external hard drive and a fast internal.
     
  3. John01021988 macrumors 6502

    Joined:
    May 11, 2007
    #3
    dont upgrade at apple. Buy it and buy a 2.5 hardrive at newegg.com. U can have a 160 at 7200 rpm as well as a 200gb at 5400 rpm
     
  4. graymccarty thread starter macrumors member

    graymccarty

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    Jun 5, 2007
    Location:
    Toronto, ON
    #4
    Will that compromise my Warranty?
     
  5. crazycat macrumors 65816

    crazycat

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    Dec 5, 2005
    #5
    I would recommend the largest hard drive you can get but nothing below 5400 rpm. I like the extra hard drive but if you have a mobil external hard drive like me it does not make a difference.

    In real world use you might spend 20 secs more moving a file that would take 1 min.
     
  6. iW00t macrumors 68040

    iW00t

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    #6
    For a MacBook you need not worry.
     
  7. djinn macrumors 68000

    djinn

    Joined:
    Oct 4, 2003
    #7
    A 7200 RPM drive with little data will blow away a 5400 RPM. However, the more data that gets put on the 7200RPM drive does cause impact to performance.

    Just google 7200RPM vs 5400RPM and there is a chart that is floating around and will explain what I just wrote.
     
  8. localoid macrumors 68020

    localoid

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    Feb 20, 2007
    Location:
    America's Third World
    #8
    The largest SATA 2.5" 7200 rpm drive NewEgg had in stock as of last night was a 100GB. Right now, the 120- and 160-GB SATA 7200 rpm drives are in relatively short supply, and many resellers seem to demand a premium price for them if they have them in stock. This availability problem will probably ease up in the near future however...
     
  9. Nermal Moderator

    Nermal

    Staff Member

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    Location:
    New Zealand
    #9
    No. I changed from the 120 GB 5400 drive to the 200 GB 4200 and it doesn't seem to be any slower. I suppose your mileage may vary especially if you do a lot of disk-intensive work, but for general use you're not going to notice any difference.
     
  10. whateverandever macrumors 6502a

    Joined:
    Nov 8, 2006
    Location:
    Baltimore
    #10
    Don't listen to people and their conjectures about large low-rpm drives. They've never actually used it themselves, so they really have no idea how the day-to-day feel is.

    If size and performance matter to you, pick up this drive:

    http://www.newegg.com/Product/Product.aspx?Item=N82E16822136123


    I went for pure performance and picked up a 160GB 7200rpm Seagate drive, but if that WD drive had been available at the time, it would have been a very close contender for my attention. *drool*
     
  11. desk003 macrumors member

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    Sep 7, 2005
    Location:
    Vincennes, IN, USA
    #11
    the faster rpm, usually the faster drive, but once you fill it up, it gets slower, no matter the rpm. plus, faster rpm, more heat, less battery life.

    This, from barefeats convinced me to get the 200gb 4200rpm over the 160 5400rpm in my mbp. Because once you fill it half full, the data transfer equals itself out.
     
  12. whateverandever macrumors 6502a

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    Nov 8, 2006
    Location:
    Baltimore
    #12
    Barefeats is hardly a credible source for performance comparisons.
    And no, it doesn't equal out. Straight data throughput may equal, but random reads and writes are what counts in day-to-day activities.

    Enjoy your slow drive.

    And the battery life difference between drives is really very, very small. Maybe 5 minutes less battery life with 7200rpm than 4200rpm.
     
  13. yetanotherdave macrumors 68000

    yetanotherdave

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    Apr 27, 2007
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    Bristol, England
    #13
  14. desk003 macrumors member

    Joined:
    Sep 7, 2005
    Location:
    Vincennes, IN, USA
    #14
    Show some data that compares the drives and disputes what barefeats have shown. In the multiple threads that have mentioned it, never have I seen anyone able to prove them wrong.

    Why do you say they aren't a credible source?
     
  15. desk003 macrumors member

    Joined:
    Sep 7, 2005
    Location:
    Vincennes, IN, USA
    #15
    I looked it up, seek times.

    hitachi 160gb 5400rpm: 11ms, avg latency: 5.5ms
    toshiba 200gb 4200rpm: 12ms, avg latency: 5.55ms

    (avg seek time from newegg, avg latency for hitachi from hitachi datasheet, for toshiba from newegg)

    looks pretty much the same, don't cha think?

    [EDIT: Here's the toshiba site link, to the specs for the drive (i think it's the same one), don't open it in camino, safari works though]
     

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