some WD6400AAKS impressions

Discussion in 'Mac Pro' started by aibo, Mar 4, 2008.

  1. aibo macrumors 6502

    Joined:
    Jan 17, 2008
    Location:
    Southern California
    #1
    Just received the new Western Digital SE16 640GB "WD6400AAKS" with 320GB/platter technology. Some quick tests in my 2008 mac pro vs the stock 320GB WD drive:

    Startup (chime to desktop):
    OEM 320GB - 31.8 sec
    WD6400AAKS - 25.3 sec

    Xbench results (OEM vs WD6400AAKS):
    [​IMG]

    Great drive, very quiet.
     
  2. JesterJJZ macrumors 68020

    JesterJJZ

    Joined:
    Jul 21, 2004
  3. OMGWTFBBQ macrumors member

    OMGWTFBBQ

    Joined:
    Oct 5, 2007
    #3
    I just installed mine today, it is indeed a very fast and quiet drive... Now I just have to figure out how I want to configure my two drives for optimal performance (my other is a stock 500). :)
     
  4. Jonny427 macrumors regular

    Joined:
    Oct 16, 2007
    Location:
    Orange County, CA
    #4
    Thanks for the numbers, i'll compare these to my WD5000AAKS when I get home tonight :)
     
  5. Firefly2002 macrumors 65816

    Joined:
    Jan 9, 2008
    #5
    What they need is much higher areal density... as it is, Raptors are generally slower than TB drives.
     
  6. JrdBeau macrumors member

    Joined:
    Oct 10, 2002
    Location:
    San Jose, CA
    #6
    How does this compare to the WD 750 in terms of performance?
     
  7. aibo thread starter macrumors 6502

    Joined:
    Jan 17, 2008
    Location:
    Southern California
    #7
    I pulled these numbers off the XBench site for someone with a 2008 Mac Pro and the WD7500AAKS:
    Disk Test 90.18
    Sequential 140.92
    Uncached Write 152.81 93.83 MB/sec [4K blocks]
    Uncached Write 162.63 92.02 MB/sec [256K blocks]
    Uncached Read 95.15 27.84 MB/sec [4K blocks]
    Uncached Read 193.00 97.00 MB/sec [256K blocks]
    Random 66.30
    Uncached Write 25.17 2.66 MB/sec [4K blocks]
    Uncached Write 216.85 69.42 MB/sec [256K blocks]
    Uncached Read 98.85 0.70 MB/sec [4K blocks]
    Uncached Read 170.18 31.58 MB/sec [256K blocks]

    So as good as the WD7500AAKS performs, it looks like the WD6400AAKS beats it in every test.
     
  8. subaqua macrumors member

    Joined:
    Jan 15, 2008
    Location:
    Minneapolis
    #8
    I don't know if I agree with "in general". The raptors will likely perform better at IOPS.

    I agree that with large sequential IO patterns; reads or writes, then yes, the large TB drives will have better performance.
     
  9. JrdBeau macrumors member

    Joined:
    Oct 10, 2002
    Location:
    San Jose, CA
    #9

    Thanks for the info!
     
  10. GotPro macrumors 6502

    Joined:
    Jan 29, 2007
    #10
    All I know is that I temporarily auditioned a Raptor as my Boot Drive in my Mac Pro.

    The Hitachi 1TB beats it handily in app loading times, boot times, acoustic comfort, and just about every other way (in real life).

    And for the same price (roughly)... I got 1TB of space vs. 150 Gig.

    Raptor was fabulous in it's day... REALLY long in the tooth now.

    IMHO, of course!
     
  11. alljunks macrumors regular

    Joined:
    Apr 8, 2007
    #11
    WD is coming out with their 300g raptor this summer!!
     
  12. TheThirdMan macrumors regular

    TheThirdMan

    Joined:
    Nov 14, 2007
    Location:
    London, UK
    #12
    I want one for me MP! Anyone know anywhere that's got one in stock in UK? I can only find pre-orders...
     
  13. mgsarch macrumors regular

    Joined:
    Jan 19, 2008
    #13
    I ordered 4 for my MP! : )

    Now I need to figure out what RAID I'm going to use ... and where to order the CalDIGIT card!

    Raptors ... old news. Waste of a bay IMO. Speed = Striping.
     
  14. rob finch macrumors member

    Joined:
    Mar 24, 2006
    Location:
    England
    #14
    Overclockers seem to have it in stock, my order went through ok! :cool:
     
  15. TheThirdMan macrumors regular

    TheThirdMan

    Joined:
    Nov 14, 2007
    Location:
    London, UK
    #15
    Just ordered one from them. I was checking their site every day, but its only just in stock. Should be here tomorow...
     

Share This Page