HDTach - Sequential Read Speed/Burst Speed

The HDTach benchmark gives us a great deal of detail on the performance of a hard drive. Like the WinBench 99 Transfer Rate test, HDTach graphs the sequential read speed of the drive as the drive reads continuously from beginning to end.

Seagate 500GB 7200.9


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Hitachi 7K500


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Western Digital WD4000YR


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The 500GB 7200.9 redeems itself here with the highest burst speed of 248.1MB/sec with the 7K500 coming in second at 223.6MB/sec. The rest of the figures here are all over the board with the 7K500 holding the lowest random access time at 12.6ms and the WD4000YR having the highest average read rate of 56.9MB/sec. We are obviously not ready to call a winner after only a few tests.

Windows Read Speed Test

Seagate 500GB 7200.9

IPEAK Business Winstone 2004 - Pure Hard Disk Performance

Hitachi 7K500

IPEAK Business Winstone 2004 - Pure Hard Disk Performance

Western Digital WD4000YR

IPEAK Business Winstone 2004 - Pure Hard Disk Performance



It seems the Windows Read Speed Test gives us a better readout of the actual transfer rates of each drive. We see that the Seagate and Hitachi read speeds are off the charts because of their 3.0Gb/sec maximum transfer rate. The WD4000YR is a 1.5Gb/sec drive which is why the transfer rate is much lower than the 7K500's 200MB/sec+ rate.

WinBench 99 - Transfer Rate Test Real World Tests
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  • Visual - Saturday, December 3, 2005 - link

    i cant imagine what error would hang my drive for 8 seconds :/ and if it really happened, even in recoverable error, i'd not trust that drive again anyway. so it'd be better to mark it "failed"
  • Lakeshow - Saturday, December 3, 2005 - link

    Yeah I read that article on storagereview.com couple days after I got my WD4000YR and it kind of bothers me.

    Oh well, what are you gonna do? I absolutely love this drive. I can only hope this drive will live until my next voluntary upgrade.
  • Lifted - Friday, December 2, 2005 - link

    The HD Tach screenshots say "for non-commercial or evaluation use only, see license agreement."

    Hmmmmm. Anandtech is non-commercial?
  • Gannon - Friday, December 2, 2005 - link

    I'd like to see more tests done on drives that are at least 80% full because a lot of us pack our drives full of stuff and the performance we end up getting is when we've filled it. While these tests are good and all, I think they inflate the actual scores of how a drive is really used. No drive sits with just XP and a game or two and a couple of test files, that bias's the tests toward unrealistic use of how hard disks are used, especially big ones over 160GB. I fill my drives regularly and I have over 800GB needless to say I'm backing up stuff to DVD's just to have enough space to perform other operations.
  • WileCoyote - Friday, December 2, 2005 - link

    Why does everyone want Anandtech to benchmark their current system? Run your own benchmark if you want to know the speed of your hard-drive/computer. I think the articles here are perfect - they help me decide what to purchase in the future. I don't need an article to make me feel good about what I already have. I like the current format of articles that educate me on my next purchase.
  • johnsonx - Friday, December 2, 2005 - link

    time to cut down on the pron addiction
  • Olaf van der Spek - Friday, December 2, 2005 - link

    > We were also surprised to see the WD4000YR perform so well, since it is using the 1 st generation 1.5Gb/sec interface.

    That's a joke, right?
    I hope you weren't really expecting a significant performance improvement from a faster interface (300 mbyte/s instead of 150 mbyte/s while HDD's are more near 75 mbyte/s and only during seqential access).
  • bob661 - Friday, December 2, 2005 - link

    I think the interface increases benefit RAID performance more than singledrive performance.
  • Olaf van der Spek - Friday, December 2, 2005 - link

    I don't think so, as (without involvement of port multipliers) SATA is a point to point architecture.
  • yacoub - Friday, December 2, 2005 - link

    Or you can go buy a pair of 200GB Samsung SpinPoint SP2004C drives for under $100 each and have a much quieter drive setup. :)

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