Hitachi Deskstar 7K1000.C 1TB vs. WD Caviar Blue 1TB

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Hitachi Deskstar 7K1000.C vs. WD Caviar Blue: 1TB HDD Battle

February 6, 2011 by Lawrence Lee

Hitachi Deskstar 7K1000.C HDS721010CLA332
1TB 3.5" HDD
WD Caviar Blue WD10EALS
1TB 3.5" HDD
Sample Supplier
Western Digital
Street Price
US$55~$60 US$60~$65

For most of the last decade, shopping for desktop PC storage options was a relatively simple affair as there weren't many choices for consumers aside from the typical 7,200 RPM mechanical hard disk drive. Usually it boiled down to capacity, brand, price and availability. While 7,200 RPM drives are a long way from being obsolete, the storage landscape is much more complex than ever before.

There are slower 5400/5900 RPM "green" drives like the WD Caviar Green, Samsung EcoGreen, and Seagate LP series that offer excellent acoustics, superb energy efficiency, and super low prices but slower overall performance. The most expensive and fastest desktop drives on the market are WD's new generation of 10,000 RPM VelociRaptors. However, even the VelociRaptors can be considered cheap compared to solid state drives (of similar size) that deliver tremendous speed and no measurable noise. Then, there are hybrid drives like the Seagate Momentus XT that combine mechanical and solid-state technology.

With all the innovation in digital storage, it is easy for drives like the Hitachi Deskstar 7K1000.C and WD Caviar Blue 1TB to get lost in the shuffle. They don't represent anything particularly new or exciting, just the latest evolution in mainstream 7,200 RPM hard drives. They're not even the best in their class, not offering as much capacity or speed as high performance 7,200 RPM models like WD Caviar Black or Seagate Barracuda XT. However, they are more affordable and shouldn't sacrifice as much performance as "green" drives... while hopefully maintaining reasonable noise levels.

The Hitachi Deskstar 7K1000.C 1TB.

Hitachi's Deskstar 7K1000.C 1TB is one of the cheapest 7,200 RPM drives on the market, retailing for US$55~$60. As the model number implies, this is the third generation of the 7K1000 series, with the main difference between them being areal density/platter size. The 1TB variant features just two 500GB platters and 32MB of cache. Like previous Hitachi drives, the casing is minimal with less structural support for the area around the motor.

The WD Caviar Blue 1TB.

The Caviar Blue series sites between Western Digital's energy efficient Caviar Greens and high performance Caviar Blacks. We expect the acoustics, power consumption, and performance of the WD10EALS to fall somewhere in-between the two. It has 32MB cache, and though the number of disks/heads are not detailed in WD's literature, we have reason to believe this sample, like the Hitachi 7K1000.C, is also a two platter variant. The Caviar Blue 1TB is priced slightly higher than the Deskstar 7K1000.C at US$60~$65.

Hitachi Deskstar 7K1000.C vs. WD Caviar Blue 1TB
Model Number HDS721010CLA332 WD10EALS
Capacity 1 TB 1 TB
Cache 32 MB 32 MB
Interface SATA 3 Gb/s SATA 3 Gb/s
Rotational speed 7,200 RPM 7,200 RPM
Platters 2 ?
Transfer rate (sustained) ? 126 MB/s (max)
Average latency 4.17 ms ?
Average Drive Ready Time 10 seconds ?
Weight 680 grams (620 grams measured) 0.69 kg (640 grams measured)
Power: Idle / Seek 4.4 W / 5.7 W / 8.4 W 6.1 W / 7.3 W
Acoustics: Idle / Seek (AAM) / Seek 2.4 Bels / 2.5 Bels / 2.9 Bels 28 dBA / ? / 33 dBA
Warranty 3 years 3 years

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