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

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NOISE

Despite being 7200 RPM models, both Deskstar and Caviar Blue samples were very quiet when idle, rivaling the noise level of "green" drives from Western Digital and Samsung. The Caviar Blue measured 14 dBA@1m, while the Deskstar produced only 13 dBA@1m. Up close, the Western Digital drive sounded a little more 'hollow' than the Hitachi. Inside a case with a side panel of reasonable thickness, both drives should be near inaudible at one meter's distance, at least when they're idle.


The Deskstar and Caviar Blue 1TB when seeking.

When seeking the Deskstar is quieter once again, but the difference is much greater. The WD measured 20 dBA@1m to the Hitachi's 17 dBA@1m. The Caviar Blue had more pronounced seeks, sounding like little thumps while the Deskstar's seeks produced scratching type noises. Using AAM, we managed to lower the Caviar Blue's noise output by 3~4 dB when seeking, but only got a 1~2 dB improvement out of the Hitachi.

VIBRATION & POWER

COMPARISON
HDD
Mfg date
firmware version
Vibration
1-10
(10 = no vibration)
Activity State
Airborne Acoustics
(dBA@1m)
Measured
Power
Hitachi Deskstar
7K1000.C 1TB HDS721010CLA332
February 2010
firmware JP4OA39C
5
Idle
13
4.6 W
Seek (AAM)
15~16
6.4 W
Seek
17
9.6 W
WD Caviar Blue
1TB WD10EALS
August 2010
firmware 05.01D05
7
Idle
14
5.2 W
Seek (AAM)
16~17
6.6 W
Seek
20
8.2 W
WD VelociRaptor.
600GB WD6000HLHX

August 2010
firmware 04.05G04
(bare drive)
7
Idle
14~15
4.2 W
Seek
20~22
5.5 W
WD VelociRaptor.
300GB WD3000GLFS

May 2008
firmware 03.03V01
(bare drive)
7
Idle
15
3.9 W
Seek (AAM)
20
5.7 W
Seek
22
6.2 W
WD Caviar Black
2TB WD2001FASS

August 2010
firmware 01.00101
6
Idle
16
6.3 W
Seek
21~23
10.5 W
Seagate Barracuda XT
2TB ST32000651AS
May 2010
firmware CC13
7 / 8
Idle
17
7.0 W
Seek
18~19
7.9 W

The Deskstar used very little power when idle but a surprisingly high amount when seeking, almost 10W. The Caviar Blue was more average in this regard. While the Hitachi was the quieter drive, the level of vibration was much stronger than that of the Caviar Blue, even surpassing the 2TB Caviar Black. Properly suspended, the Deskstar would be acoustically superior, but if hard-mounted, it would probably cause a more noise.

DRIVE COMPARISON TABLE

Drive
Mfg date
firmware version
Vibration
1-10
(10 = no vibration)
Activity State
Airborne Acoustics
(dBA@1m)
Measured
Power
5,400 ~ 5,900 RPM DESKTOP DRIVES
Samsung EcoGreen F2
500GB HD502HI

February 2009
firmware 1AG01114
8
Idle
12
3.2 W
Seek (AAM)
15
5.3 W
Seek
16
6.1 W
Seagate Pipeline HD .2
1TB ST31000424CS
April 2009
firmware SC13
7
Idle
12
4.3 W
Seek
16
7.3 W
WD Caviar Green
2TB WD20EARS
August 2010
firmware 01.00A01
9
Idle
12~13
2.8 W (2.4 W heads unloaded)
Seek
6.5 W
WD Caviar Green
1.5TB WD15EARS
March 2010
firmware 80.00A80
7
Idle
13
4.4 W (2.7 W heads unloaded)
Seek
5.8 W
WD Caviar Green
1.5TB WD15EADS
November 2009
firmware 01.00A01
9
Idle
13
4.5 W (2.8 W heads unloaded)
Seek (AAM)
14
5.8 W
Seek
Seagate Pipeline HD .2
500GB ST3500414CS
March 2009
firmware SC13
8
Idle
13
2.7 W
Seek
14
6.7 W
WD Caviar Green
2TB WD20EADS

February 2009
firmware 01.00A01
7
Idle
13
6.4 W (4.0W heads unloaded)
Seek (AAM)
6.5 W
Seek
13~14
6.5 W
Samsung EcoGreen F4
2TB HD204UI

August 2010
firmware 1AQ10001
7
Idle
13
4.0 W
Seek
15
5.6 W
WD Caviar Green
2TB WD20EVDS

November 2009
firmware 0.100A01
8~9
Idle
13~14
3.9 W
Seek
6.5 W
Seagate Pipeline HD
500GB ST3500321CS

July 2008
firmware SC14
6
Idle
14
4.1 W
Seek
15
6.9 W
Seagate Barracuda LP
2TB ST32000542AS
June 2009
firmware CC32
6
Idle
14
4.7W
Seek
17
7.9W
WD Caviar Green
3TB WD30EZRS
September 2010
firmware 01.00A01
8
Idle
14~15
4.1 W (3.7W heads unloaded)
Seek
7.5W
Samsung EcoGreen F3
2TB HD203WI
May 2010
firmware 1AN10003
7
Idle
15~16
4.7 W
Seek (AAM)
17~18
6.1W
Seek
18~19
6.9 W
7,200 RPM DESKTOP DRIVES
Hitachi Deskstar
7K1000.C 1TB HDS721010CLA332
February 2010
firmware JP4OA39C
5
Idle
13
4.6 W
Seek (AAM)
15~16
6.4 W
Seek
17
9.6 W
WD Caviar Blue
1TB WD10EALS
August 2010
firmware 05.01D05
7
Idle
14
5.2 W
Seek (AAM)
16~17
6.6 W
Seek
20
8.2 W
Seagate Pipeline HD
Pro 1TB ST31000533CS

September 2008
firmware SC15
4
Idle
15
7.1 W
Seek
16
10.1 W
Seagate Barracuda
7200.12 500GB
ST3500418AS
September 2009
firmware CC37
8
[muffled]
Idle
[16]
18
4.7 W
[muffled]
Seek
[18]
19~20
7.9W
WD Caviar Black
2TB WD2001FASS

August 2010
firmware 01.00101
6
Idle
16
6.3 W
Seek
21~23
10.5 W
Seagate Barracuda XT
2TB ST32000651AS

May 2010
firmware CC13
7~8
Idle
17
7.0 W
Seek
18~19
7.9 W
Seagate Barracuda
7200.11 1.5TB
ST31500341AS

October 2008
firmware SD17
4
Idle
17
8.8 W
Seek
19
10.7 W
WD Caviar Black
1TB WD1001FALS

July 2008
firmware 05.00K05
4
Idle
21
8.5 W
Seek (AAM)
10.9 W
Seek
25
11.0 W
10,000 RPM DESKTOP DRIVES
WD VelociRaptor.
600GB WD6000HLHX

August 2010
firmware 04.05G04
(bare drive)
7
Idle
14~15
4.2 W
Seek
20~22
5.5 W
WD VelociRaptor.
300GB WD3000GLFS

May 2008
firmware 03.03V01
(bare drive)
7
Idle
15
3.9 W
Seek (AAM)
20
5.7 W
Seek
22
6.2 W

The Desktar 7K1000.C and Caviar Blue are very quiet compared to other 7,200 RPM drives, but their acoustics only rival "green" drives when idle. Power consumption is a bit on the high side.



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