WD Caviar GP: The "Green" 1 TB Drive

Application Performance


Drive Surface Temperature

The dynamically adjusting rotation speed also has an impact on the drive’s heat dissipation. Despite working on four platters, the WD10EACS Caviar GP only reached 41°C (105°F) after two hours of intensive operation. Bear in mind that the only drive that stayed cooler, the WD1600AAJS, is a single-platter drive from WD, the single disc causing considerably less friction.

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  • Dick99999
    I wonder whether the following should be read such that each GP model has it's own but otherwise fixed RPM for that model.
    WD spec sheet says:
    "IntelliPower™ — A fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance. For each GreenPower™ drive model, WD may use a different, invariable RPM."

    Or is it really a fully dynamic RPM during operation as could be read by:
    "WD goes down this path with its Caviar GP drives, as the firm adjusts the rotation speed anywhere between 5,400 RPM and up to 7,200 RPM dynamically for each model."
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  • Dick99999
    Sorry, it seems every series has a different description. I quoted the Caviar GP and the tech overview. The different descriptions are:

    RE2-GP series
    IntelliPower — A fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance. Additionally,....[some other remarks]

    AV-GP series
    IntelliPower – A fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance.

    Caviar®GP
    IntelliPower™ — A fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance. For each GreenPower™ drive model, WD may use a different, invariable RPM.
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  • Anonymous
    All GP drive are fixed 5400rpm as of today. No they do not vary RPM, this reviewer does not know what he is talking about. It has been proven mathematically with access times and acoustical measuring. Further more, WD does NOT claim the spindle speed varies. They CONFIRM that the spindle speed is INvariable as clearly stated below. WD has pulled ALL GP spindle speed information off their website to avoid confusion and to not detour people from this great drive.

    Caviar®GP
    IntelliPower™ — A fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance. For each GreenPower™ drive model, WD may use a different, invariable RPM.
    1