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Feature Table

WD Caviar GP: The "Green" 1 TB Drive
By
Manufacturer Western Digital
Model Caviar GP
Model Number WD10EACS
Capacity 1,000 GB
Spindle Speed 5,400 to 7,200 RPM
Other Capacities 500, 750 GB
Platters 4
Cache 16 MB
NCQ Yes
Interface SATA/300
Warranty 3 years

Test Setup

System Hardware
Processor(s) 2x Intel Xeon Processor (Nocona core)
3.6 GHz, FSB800, 1 MB L2 Cache
Platform Asus NCL-DS (Socket 604)
Intel E7520 Chipset, BIOS 1005
RAM Corsair CM72DD512AR-400 (DDR2-400 ECC, reg.)
2x 512 MB, CL3-3-3-10 Timings
System Hard Drive Western Digital Caviar WD1200JB
120 GB, 7,200 RPM, 8 MB Cache, UltraATA/100
Mass Storage Controller(s) Intel 82801EB UltraATA/100 Controller (ICH5)
Promise SATA 300TX4
ICP 5085BL 8-Port SAS/300
Networking Broadcom BCM5721 On-Board Gigabit Ethernet NIC
Graphics Subsystem On-Board Graphics
ATI RageXL, 8 MB
System Hardware
Performance Measurements Atto Diskmark
I/O Performance IOMeter 2003.05.10
Fileserver-Benchmark
Webserver-Benchmark
Database-Benchmark
Workstation-Benchmark
System Software & Drivers
OS Microsoft Windows Server 2003 Enterprise Edition, Service Pack 1
Platform Driver Intel Chipset Installation Utility 7.0.0.1025
Graphics Driver Default Windows Graphics Driver
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  • 0 Hide
    Dick99999 , May 15, 2008 11:47 AM
    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."


  • -1 Hide
    Dick99999 , May 15, 2008 12:33 PM
    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.
  • 1 Hide
    Anonymous , September 15, 2008 3:54 AM
    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.
  • 0 Hide
    TheCloud903 , October 23, 2011 10:56 AM