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 newsletter!
Most Popular Reviews
- 1 Oppo AX7 review: New looks, same old budget buy
- 2 JBL Free X review: Better battery life comes at a cost
- 3 Fitbit Charge 3 review: Keeping it simple
- 4 Samsung Tab S4 review: Freestyle
- 5 Razer Phone 2 review: One for the fans
Latest News Articles
- MSI give the AMD Radeon VII a launch day price
- The CES Files: Brydge Chrome Desktop
- The CES Files: Nemieo Keyboard
- Samsung introduce 970 EVO Plus NVMe SSD
- CES 2019: Mad Catz strike back
PCW Evaluation Team
This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.
Microsoft Office continues to make a student’s life that little bit easier by offering reliable, easy to use, time-saving functionality, while continuing to develop new features that further enhance what is already a formidable collection of applications
I’d recommend a Dell XPS 15 2-in-1 and the new Windows 10 to anyone who needs to get serious work done (before you kick back on your couch with your favourite Netflix show.)
It’s useful for office tasks as well as pragmatic labelling of equipment and storage – just don’t get too excited and label everything in sight!
The Brother MFC-L8900CDW is an absolute stand out. I struggle to fault it.
I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.
- Everything we (already) know about the Samsung Galaxy S10, S10e, S10+ and Galaxy F
- Want to play Apex Legends?
- Huawei Mate 20 Pro review: Full, in-depth, Australian review
- Everything you need to know about Smart TVs
- What's the difference between an Intel Core i3, i5 and i7?
- Laser vs. inkjet printers: which is better?