WD Caviar Black 1TB Hard Drive
Author: Zahn Funk
Editor: Shawn Knight
Date: 04-16-2009
Provided by: Computer Geeks

HD Tune is my favorite program for benchmarking hard drives, and here we show the supported features and specifications on the WD Black 1TB drive. Of particular note is the cool 38 C operating temperature, quite impressive I thought, even for a drive unmounted, outside the case.

The read performance of the WD Black 1TB shows that it starts out above 100MB/s throughput and tapers off to around 50MB/s as the heads travel the spindle surface, giving an average transfer rate of 86MB/s. This seems quite good to me for a single drive, equal to the performance of old IDE RAID arrays! Access time is a bit high at over 12ms; it would be nice to see this average in the single digits.

SiSoft Sandra 2009 Physical Disk read performance confirms HD Tune's results with a 87.86MB/s measurement, although it pegs the access time at a very low 6ms, equivalent to the highly famed Velociraptor drive or a SATA RAID0 array. Somehow I doubt the access time is really that good. The File System read test provides similar results, 85.09MB/s read speeds with a 12ms access latency. This test seems to provide more realistic numbers that more closely match what we observed in HD Tune.

In real-world testing, I used a single 600MB file as well as a folder containing 500 files with a combined total of 600MB to get results for read/write tests. The scores are pretty impressive, all single digits and surprisingly the smaller files scored better than the single large file both in read and write operations.

Let's take a look at the OS performance.

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