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Read Transfer Performance
8:05 AM - October 11, 2007 by
Patrick Schmid
Source: Tom's Hardware US – Keywords: wd, caviar, gp
Syndication:
Source: Tom's Hardware US – Keywords: wd, caviar, gp
Syndication:
Table of Contents:
Read Transfer Performance
At a maximum read throughput of 76.5 MB/s, the WD10EACS is as fast as Seagate's Barracuda 7200.10 drive at up to 750 GB. Considering that the power consumption of the WD drive is so much lower, that's pretty good.
Write Transfer Performance
- Previous page Benchmarks Results
- Next page I/O Performance
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."
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.
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.