Western Digital Caviar Green 2TB (WD20EADS) internal hard drive
The Western Digital Caviar Green 2TB (WD20EADS) is a 2TB hard drive with good speed and a fair price.
- 2TB of storage, good price per gigabyte, cool, quiet
- Not as fast as some other hard drives, slow burst speed
Even though it isn't as fast as some smaller hard drives, the Western Digital Caviar Green 2TB (WD20EADS) is the first drive to offer 2TB of data storage, and it has a reasonable price and delivers decent speeds. If you need lots of space in a single HDD, then you should definitely consider it.
Price$ 389.00 (AUD)
Western Digital has managed to fit 2TB of storage in a single hard drive. The Western Digital Caviar Green 2TB (WD20EADS) has a competitive cost per gigabyte of storage, although there are faster hard drives available.
The Western Digital Caviar Green 2TB has an areal density of 400 gigabits per square inch, and its four platters hold 500GB of data each. It is equipped with a 32MB cache and has an interface speed of 3Gbps. The drive has a formatted capacity of 1.81TB, delivering a competitive cost per gigabyte of 26 cents.
There are faster hard drives, such as the Seagate Barracuda 7200.11 1.5TB. But that isn't to say the Western Digital Caviar Green 2TB is especially slow. This was demonstrated during testing with HD Tune Pro, which showed an average read speed of 78.1 megabytes per second, an average write speed of 77.5MBps and a burst rate of 126MBps. By comparison, the Seagate Barracuda 7200.11 1.5TB scored a read speed of 94.6MBps, a write speed of 98.4MBps and a burst rate of 147MBps. (The burst rate is the highest speed that data can be transferred from the cache to the system.)
We conducted some real-world testing as well, transferring 18GB of data between the Western Digital Caviar Green 2TB and our test bed PC, which uses a Western Digital Velociraptor (WD3000GLFS).
We recorded a read speed of 50MBps and a write speed of 61.66MBps. Both of these speeds are respectable in their own right but slower than the average 72.91MBps achieved by the Seagate Barracuda 1.5TB.
The results from our copy transfer test, where we transfer the data from one location on the drive to another, were more positive with the 2TB drive achieving an excellent speed of 33.295MBps.
HD Tune Pro also revealed the Western Digital Caviar Green 2TB has an access time of 14.7ms. This encompasses the drive's seek time, transfer time, spin-up time and rotational delay, and is slightly slower than the Seagate Barracuda 1.5TB's access time of 13.9ms. To put this into perspective, the high-performance Western Digital Velociraptor (WD3000GLFS) has an access time of 7ms.
Some of the drive's slower performance is probably due to the hard drive being designed to be "green", which involves a number of processes aimed at minimising noise, temperature and power consumption levels. The most significant of these is the IntelliPower function, which controls the speed to optimise power usage. Western Digital does not disclose the number of revolutions per minute (rpm) the Caviar Green 2TB can achieve, and the IntelliPower function can't be disabled.
Our tests showed that the drive was able to run at 34°C, which is between one to two degrees below the average operating temperatures of the Seagate Barracuda and Western Digital Velociraptor.
Although the WD Caviar Green 2TB's cost per gigabyte of 26 cents is 5 cents more than the Barracuda 1.5TB drive's 21 cents, it's still great value for this amount of storage in a single device. Because the hard drive is new, you can expect prices to start dropping very soon as the competition catches up.
If you're after a whole lot of storage in a single hard drive, you can't go past the Western Digital Caviar Green 2TB.
Join the Good Gear Guide newsletter!
Most Popular Reviews
- 1 Subaru XV 2017 review
- 2 Samsung 2017 QLED Q7 TV: Full, in-depth review
- 3 Kogan Atlas UltraSlim Pro laptop: full, in-depth review
- 4 Gigabyte Aorus GA-AX370-Gaming 5 AMD Ryzen AM4 motherboard review
- 5 Kogan curved 4K UHD 55-inch LED LCD TV review
Latest News Articles
- EC says LCD screen cartel is active globally
- Sharp to increase LCD panel production on higher demand
- Dick Smith report says Australians keen to switch to digital radio
- Samsung, Numonyx to develop PCM specifications
- Faster SD cards could reach devices next year
PCW Evaluation Team
A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.
I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.
As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.
I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.
Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!
For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.
- Samsung Galaxy S8 phone: full, in-depth review
- Ryzen 5 vs Intel Core i5 CPU Australian review
- Mass Effect Andromeda review: One for the fans
- Which flagship TV is best? Sony 4K HDR Bravia 2016 versus LG 4K HDR OLED 2016
- 10 Blu-ray movies / Best looking Blu-ray movies
- CCNetwork Solution ArchitectNSW
- FTHelpdesk AnalystNSW
- FTCampaign ManagerNSW
- FTProcess Analyst - Green BeltVIC
- FTBusiness Development Manager IT HealthcareQLD
- TPSenior Helpdesk/Junior Systems AdministratorQLD
- FTSAP APO ConsultantNSW
- FTSenior Sales Operations AnalystNSW
- FTBusiness Analyst - BI, Analytics & Big DataNSW
- CCSenior Network Architect l CCNP/CCIE R&S l Cisco ACINSW
- FTSystems EngineerNSW
- FTSenior MS Dynamics CRM DeveloperVIC
- CCSenior Project ManagerNSW
- CCSecurity Specialist - NV1ACT
- FTVDI EngineerACT
- CCTechnical Requirements Architect - NV1ACT
- FTMarket Data Analyst, Investment BankingNSW
- FTSenior Desktop Engineer - SCCM / AD / 2012 ServerNSW
- FTData Analyst - Tableau and Power BI suiteNSW
- FTICT Relationship Manager - Service Delivery EnvironmentNSW
- FTAsst. Director - Claim AnalysisACT
- CCSystems AdminNSW
- FTSecurity Consultant -10056987-001VIC
- TPService Desk OperatorQLD