Add to Reddit
IO Meter (HDD)
We compared the HDD component of the WD Black² (WD1001X06XDTL) to the 1 TB Western Digital Scorpio Blue (WD10JPVT). For more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.
Throughput (Random Access)
Although we noted that the 500 GB WD Blue Slim is faster than the full-height 1 TB Scorpio Blue (WD10JPVT) drive because of its higher density platters, the 1 TB Blue Slim component of the Western Digital Black² seems to be slightly slower than its full-height equivalent, the 1 TB Scorpio Blue (WD10JPVT). This could be due to the use of the Marvell 88SM9642 SATA bridge.
Test |
1 TB WD Black² |
1 TB Scorpio Blue |
Difference |
512 KB Read |
15.08 MB/s |
16.65 MB/s |
- 9.4% |
512 KB Write |
17.29 MB/s |
17.40 MB/s |
- 0.6% |
4 KB Read |
0.23 MB/s |
0.26 MB/s |
- 11.5% |
4 KB Write |
0.23 MB/s |
0.24 MB/s |
- 4.2% |
Random Access Time
Test |
1 TB WD Black² |
1 TB Scorpio Blue |
Difference |
512 KB Read |
34.76 ms |
31.46 ms |
+ 10.5% |
512 KB Write |
30.32 ms |
30.12 ms |
+ 0.6% |
4 KB Read |
17.91 ms |
15.91 ms |
+ 12.6% |
4 KB Write |
17.93 ms |
16.80 ms |
+ 6.7% |
CPU Utilization (Random Access)
Test |
1 TB WD Black² |
1 TB Scorpio Blue |
Difference |
512 KB Read |
0.23% |
0.15% |
+ 53.3% |
512 KB Write |
0.29% |
0.14% |
+ 107.1% |
4 KB Read |
0.08% |
0.12% |
- 33.3% |
4 KB Write |
0.21% |
0.36% |
- 41.7% |
Throughput (Sequential Access)
When it came to sequential transfers, the higher density platters used in the Western Digital Black² allowed it to deliver slightly better performance than its full-height equivalent, the 1 TB Scorpio Blue (WD10JPVT). However, we noticed that it did very badly at small sequential reads.
Test |
1 TB WD Black² |
1 TB Scorpio Blue |
Difference |
512 KB Read |
119.49 MB/s |
113.85 MB/s |
+ 5.0% |
512 KB Write |
118.40 MB/s |
112.58 MB/s |
+ 5.2% |
4 KB Read |
37.58 MB/s |
49.70 MB/s |
- 24.4% |
4 KB Write |
53.74 MB/s |
42.31 MB/s |
+ 27.0% |
Sequential Access Time
Test |
1 TB WD Black² |
1 TB Scorpio Blue |
Difference |
512 KB Read |
4.37 ms |
4.60 ms |
- 4.9% |
512 KB Write |
4.42 ms |
4.66 ms |
- 5.1% |
4 KB Read |
0.11 ms |
0.08 ms |
+ 35.5% |
4 KB Write |
0.08 ms |
0.10 ms |
- 24.3% |
CPU Utilization (Sequential Access)
Test |
1 TB WD Black² |
1 TB Scorpio Blue |
Difference |
512 KB Read |
0.59% |
0.43% |
+ 37.2% |
512 KB Write |
0.78% |
0.47% |
+ 66.0% |
4 KB Read |
6.82% |
5.65% |
+ 20.7% |
4 KB Write |
7.46% |
4.68% |
+ 59.4% |
Support Tech ARP!
If you like our work, you can help support out work by visiting our sponsors, participate in the Tech ARP Forums, or even donate to our fund. Any help you can render is greatly appreciated!
Page |
Topic |
|
1 |
||
2 |
||
3 |
• The Western Digital Black² Dual Drive |
|
4 |
• Peeking Under The PCB, SSD Controller |
|
5 |
• Testing The Black², Usable Capacities |
|
6 |
||
7 |
||
8 |
||
9 |
||
10 |
||
11 |
||
12 |
Support us by buying from Amazon.com! |
|
| Grab a FREE 30-day trial of Amazon Prime for free shipping, instant access to 40,000 movies and TV episodes and the Kindle Owners' Lending Library! | |
