PCMark05

We are utilizing the HDD test suite within PCMark05 for further comparative hard disk scores as it provides a mixture of actual application results and specific read/write percentages utilized within these programs. The program utilizes the RankDisk application within the Intel iPEAK SPT suite of tools to record a trace of disk activity during usage of real world applications. These traces are then replayed to generate performance measurements based upon the actual disk operations within each application. The HDD test suite contains 53% read and 47% write operations with each trace section utilizing varied amounts of read or write operations. Additional information about the test suite can be found in PDF format in the PCMark05 whitepaper.

Our test results are based upon the following trace runs:

Windows XP Startup: This test consists of 90% reading and 10% writes that tracks XP activities at start-up.

Application Loading: This test consists of 83% reading and 17% writes that tracks the opening and closing of the following programs.
  • Microsoft Word
  • Adobe Acrobat Reader
  • Windows Media Player
  • 3Dmark 2001SE
  • Leadtek WinFast DVD
  • Mozilla Internet Browser
General Hard Disk Drive Usage: This test consists of 60% reading and 40% writes that tracks application usage utilizing the following settings.
  • Opening a Microsoft Word document, performing grammar check, saving and closing.
  • Compression and decompression using WinZip
  • Encrypting and decrypting a file using PowerCrypt
  • Scanning files for viruses using F-Secure Antivirus
  • Playing an MP3 file with Winamp
  • Playing a WAV file with Winamp
  • Playing a DivX video using DivX codec and Windows Media Player
  • Playing a WMV video file using Windows Media Player
  • Viewing pictures using Windows Picture Viewer
  • Browsing the Internet using Microsoft Internet Explorer
  • Loading, playing and exiting a game with Tom Clancy's Ghost Recon
Hard Drive Performance - PCMark05

Hard Drive Performance - PCMark05

Hard Drive Performance - PCMark05

Hard Drive Performance - PCMark05

The WD7500AAKS's score of 6704 puts it squarely in third place once again, being bested only by the WD Raptor and the Hitachi 7K1000. Of note, the drive is nearly 8% quicker in the PCMark05 test than its 750GB competition from Seagate.

Acoustics and Thermals iPEAK General Application Tests
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  • miahallen - Wednesday, August 15, 2007 - link

    http://www.silentpcreview.com/forums/viewtopic.php...">Very good discussion concerning the problems with anandtech's sound measuring methodology here.
    quote:

    I really wasn't going to say anything here, but I feel compelled to do so. First, I almost completely disagree with nwavguy about the merits of close mic SPL measurement. The only good things about them are...

    1) you can use a poor SPL meter in an inadequate, noisy setting
    2) it's cheap

    The problems with Anandtech's methods are much greater than this, however. The HDDs are not even isloated from other noise sources which appear to be far louder than the HDDs being measured. That's totally illogical and careless if you're seeking any kind of accuracy in acoustical measurements.
  • The Boston Dangler - Friday, August 10, 2007 - link

    for Samsung to offer larger drives
  • Lord Evermore - Thursday, August 9, 2007 - link

    So...have all drives up to this point only had the drive shaft secured on one side? The end of the shaft just spinning in the air between the top platter and the casing? That seems like a very unlikely thing given how easily that could result in the platters moving and hitting the heads or even hitting the casing. Given the G forces they're rated to handle even when running makes it sound even less likely.
  • Lord Evermore - Thursday, August 9, 2007 - link

    Oh, and haven't all drives had auto-parking heads for like a decade or more? The only reason the heads would move onto the platter during spin-up is if the controller specifically drives the armature to do so. So basically, SecurePark is WD saying "hey, we don't do something stupid with the heads anymore!"

    I hate how every company has to give their own trademarked name to a basic technology that everybody has.
  • falc0ne - Thursday, August 9, 2007 - link

    I've noticed in stores 250, 320 and 400GB versions of AAKS are they the same revision drives? I'm ready to order one if so.
    Also, with the same capacities WD has drives in series KS.

    Please, I need support, I'm buying a new PC. Thank you
  • Adul - Thursday, August 9, 2007 - link

    Where did you find the Seagate for 180?
  • Gary Key - Thursday, August 9, 2007 - link

    At the time Dave wrote this, our price engine was showing ClubIT to have it for $188.89 if I remember right. I just checked and it was up to $199. We will get the article updated shortly.
  • AdamK47 - Thursday, August 9, 2007 - link

    Want!
  • gloinsir - Thursday, August 9, 2007 - link

    The following chart
    http://images.anandtech.com/graphs/wd750_080807108...">http://images.anandtech.com/graphs/wd750_080807108...
    , the Load Acoustics Chart, was missing results for the Hitachi 7K1000 with AAM/Off.
  • Gary Key - Thursday, August 9, 2007 - link

    Fixed with a press of the refresh button... strange things today.

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