New high areal density 2-and-3 TB Greens from WD

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HIGH CAPACITY DRIVE COMPARISON TABLE

HIGH CAPACITY 5,400 ~ 5,900 RPM DESKTOP DRIVES
HDD
Mfg date
firmware version
Vibration
1-10
(10 = no vibration)
Activity State
Airborne Acoustics
(dBA@1m)
Measured
Power
WD Caviar Green 3TB WD30EZRS
18 Sept 2010
firmware 01.00A01
8
Idle
14.6
4.1 W (3.7 W heads parked)
Seek
14~15
7.5 W
WD Caviar Green 2TB WD20EARS
3 Aug 2010
firmware 01.00A01
9
Idle
12.8
2.8 W (2.4 W heads parked)
Seek
12~13
6.5 W
WD Caviar Green 2TB WD20EVDS
Nov 2009
firmware 01.00A01
8~9
Idle
13.6
3.9 W (no head park)
Seek
13~14
6.5 W
WD Caviar Green
2TB WD20EADS

February 2009
firmware 01.00A01
7
Idle
13.9
4.5 W (2.8 W heads parked)
Seek
13~14
5.8 W
WD Caviar Green 1.5TB WD15EADS
November 2009
firmware 01.00A01
9
Idle
12.9
4.5 W (2.8 W heads parked)
Seek
13~14
5.8 W
Samsung EcoGreen F4 2TB HD204UI
August 2010
firmware 1AQ10001
7
Idle
13
4.0 W
Seek
15
5.6 W
Seagate Barracuda LP 2TB ST32000542AS
June 2009
firmware CC32
6
Idle
14
4.7W
Seek
17
7.9W
Samsung EcoGreen F3 2TB HD203WI
May 2010
firmware 1AN10003
7
Idle
15~16
4.7 W
AAM
17~18
6.1 W
Seek
18~19
6.9 W
Seagate Barracuda LP 2TB ST32000542AS
June 2009
firmware CC32
6
Idle
15
4.4 W
Seek
`7
8.6 W

As the table lays out plainly, the new 3-platter 2 TB WD Green is at least as quiet as the equivalent Samsung EcoGreen F4 in idle, and quieter in seek. It has much lower vibration and power consumption is also lower. From the acoustic / power efficiency standpoint, the WD20EARS has no peer. The closest competition is from an earlier WD Green, the 3-platter 1.5 TB model.

CONCLUSIONS

The new 750 and 667 GB/platter density Caviar Greens extend WD's lead in hard drive energy efficiency and low noise. The ability for a DIY builder to assemble a massive 12 TB server with just four drives or even have 6 TB of storage in just two extra drives in the PC under the desk is a staggering thought. Our 3 TB model was a touch noisier than most of our other 4-platter WD Green samples, but this is likely the result of normal sample variance. WD's approach of including an AHCI-compliant host bus adapter (HBA) card with the new >2 TB drives is a bold one, but it adds to the cost of the product, which surely must impact sales. WD — and the other drive makers with similarly high capacity drives awaiting — is surely looking forward to the soon-to-come transition to UEFI in place of the BIOS and its legacy-imposed 2.19 TB limitation.

We like the 3TB Green, but we love the new 2TB Green. The new 3-platter 2TB WD Green, model WD20EARS, is a sweet spot product at this tine. 2TB Greens are routinely selling for $100 or less these days, which is a bargain when you consider the performance and the fact that our two samples are the quietest hard drives we've tested, with extremely low vibration. It's better in this regard than just about any laptop drives of any size or speed, and its idle power is almost as low, dropping to just 2.4W when the heads are parked.

The storage scheme for a quiet desktop PC of a modest size (80~120 GB) high performance SSD for the OS and programs, plus a high density WD Caviar Green for data is more compelling than ever.

Many thanks to WD for the review samples.

WD Caviar Green 2TB WD20EARS

SPCR Editor's Choice Award

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SPCR Articles of Related Interest
Samsung EcoGreen F4 & Seagate Barracuda XT 2TB Hard Drives
Consumer SSD Battle: WD, Kingston, OCZ, Intel
WD Caviar Black 2TB & VelociRaptor 600GB
Western Digital Green 1.5TB vs. Seagate 7200.12 500GB
5900rpm Seagate Hard Drives: Barracuda LP, Pipeline HD .2

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