Western Digital Caviar Green 3TB and My Book Essential 3TB Drives Reviewedby Anand Lal Shimpi on October 19, 2010 1:43 PM EST
|CPU||Intel Core i7 965 running at 3.2GHz (Turbo & EIST Disabled)|
|Motherboard:||Intel DX58SO (Intel X58)
|Chipset:|| Intel X58 + Marvell SATA 6Gbps PCIe
|Chipset Drivers:||Intel 188.8.131.525 + Intel IMSM 8.9|
|Memory:||Qimonda DDR3-1333 4 x 1GB (7-7-7-20)|
|Video Card:||eVGA GeForce GTX 285|
|Video Drivers:||NVIDIA ForceWare 190.38 64-bit|
|Desktop Resolution:||1920 x 1200|
|OS:||Windows 7 x64|
Sequential Read/Write Speed
Using the latest build of Iometer I ran a 3 minute long 2MB sequential test over the entire span of the drive. The results reported are in average MB/s over the entire test length. Sequential read/write performance is very close to the older 7200RPM 1TB Caviar Black. The 3TB Caviar Green manages to come within 10% of the older 7200 RPM drive.
Random Read/Write Speed
This test writes 4KB in a completely random pattern over an 8GB space of the drive to simulate the sort of random access that you'd see on an OS drive (even this is more stressful than a normal desktop user would see). Random read performance takes place over the entire LBA span of the drive so the two numbers will be different. I perform three concurrent IOs and run the test for 3 minutes. The results reported are in average MB/s over the entire time.
Both random read and write performance is pretty reasonable for a sub-6000 RPM hard drive. You're definitely not going to be as fast as a modern day 7200 RPM drive or a 10K RPM Raptor for random opterations, but for large file storage you should be fine.