8 Replies Latest reply: Oct 29, 2009 10:44 AM by KevinD
CoolG4 Level 1 Level 1 (0 points)
Good Afternoon To All;
From a performance stand point, are the differences in hard drive rotational speeds significant? Are the effects noticeable? Does the 7200 generate higher temps? Thanks in advance for everyone's time!

Mac Mini 2.26 GHz Intel C2D, 4 GB DDR3, Mac OS X (10.6.1)
  • BGreg Level 6 Level 6 (17,500 points)
    It's pretty tough, but not impossible to find 2.5" 7200rpm drives, since the manufacturers moved their production capacity to serial ATA drives. With the perpendicular data storage that drives are using today, which creates denser data storage densities, data is under the heads quicker than older 5400rpm drives. I wouldn't lose sleep over 7200rpm drives ... while perhaps a valid question 2 years ago, it's less so today.
  • Dah•veed Level 7 Level 7 (32,355 points)
    I can offer you this two comparisons. The first is the XBench of my Early '09 Mac mini with a 5400 rpm int HDD. The second results are from my Early '06 iMac Core Duo with a 7200 rpm HDD. The iMac has better results. The mini's harddrive bus speed is 3 Gbps compared to the iMac's 1.5 Gbps, so the results could be more dramatically different when the comparison is with two identical Mac configurations.

    Mac mini
    Disk Test 49.80
    Sequential 64.46
    Uncached Write 75.37 46.28 MB/sec 4K blocks
    Uncached Write 87.63 49.58 MB/sec 256K blocks
    Uncached Read 36.07 10.55 MB/sec 4K blocks
    Uncached Read 103.71 52.12 MB/sec 256K blocks
    Random 40.57
    Uncached Write 15.71 1.66 MB/sec 4K blocks
    Uncached Write 92.39 29.58 MB/sec 256K blocks
    Uncached Read 69.11 0.49 MB/sec 4K blocks
    Uncached Read 103.87 19.27 MB/sec 256K blocks

    iMac
    Disk Test 65.96
    Sequential 89.96
    Uncached Write 98.61 60.55 MB/sec 4K blocks
    Uncached Write 98.33 55.63 MB/sec 256K blocks
    Uncached Read 64.70 18.93 MB/sec 4K blocks
    Uncached Read 114.94 57.77 MB/sec 256K blocks
    Random 52.07
    Uncached Write 19.99 2.12 MB/sec 4K blocks
    Uncached Write 122.45 39.20 MB/sec 256K blocks
    Uncached Read 89.66 0.64 MB/sec 4K blocks
    Uncached Read 133.57 24.79 MB/sec 256K blocks

    Dah•veed
  • CoolG4 Level 1 Level 1 (0 points)
    Thanks BGreg and David for the quick replies. I appreciate your time.
  • BGreg Level 6 Level 6 (17,500 points)
    CoolG4,

    I goofed .... I replied thinking I was still working a Powerbook question .... long day for me! If I were buying a new mini, I'd spend the extra and get a 7200rpm drive. While a 5400rpm drive is quick, the slightly faster 7200rpm drive will give you slightly snappier response times on disk operations.
  • Dah•veed Level 7 Level 7 (32,355 points)
    If I were buying a new mini, I'd spend the extra and get a 7200rpm drive.

    That is not an option available from Apple. Perhaps a 3rd party reseller has such a deal.

    Dah•veed
  • KevinD Level 1 Level 1 (5 points)
    I'm a little confused, David. You say the iMac has better results. Yet the read/write times for the Mini are shorter. Isn't that faster (and better)?
  • Dah•veed Level 7 Level 7 (32,355 points)
    Perhaps you are reading it wrong. I think 60.55 MB/sec is faster than 46.28 MB/sec. Do you?

    Dah•veed
  • KevinD Level 1 Level 1 (5 points)
    OH..OK...yes, I see that now. I misread the info. Thanks for clearing that up.