WD Blue SSHD (WD10J31X) 1TB Review Rev. 2.0

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IO Meter Benchmark Results

IO Meter

We compared the 1 TB WD Blue SSHD to the 1 TB Seagate Laptop SSHDFor more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.

 

Random Throughput

WD Blue SSHD (WD10J31X) IOMeter Random Performance

Test 1 TB WD
Blue SSHD
1 TB Seagate
Laptop SSHD
Difference
512 KB Read 18.48 MB/s 22.39 MB/s + 21.2%
512 KB Write 20.68 MB/s 31.48 MB/s + 52.2%
4 KB Read 0.22 MB/s 0.25 MB/s + 13.6%
4 KB Write 0.22 MB/s 0.25 MB/s + 13.6%

The small random reads and writes are the most important tests for applications that make a lot of random accesses, so those would be key performance indicators for drives that are used as boot or system drives, but not very important for NAS or media storage drives.

In this regard, the 1 TB WD Blue SSHD would make a much better boot drive than the 1 TB Seagate Laptop SSHD. It was almost 14% faster in small accesses and 52% faster in large random writes!

 

Random Access Time

WD Blue SSHD (WD10J31X) IOMeter Random Performance

Test 1 TB WD
Blue SSHD
1 TB Seagate
Laptop SSHD
Difference
512 KB Read 23.41 ms 28.28 ms – 17.2%
512 KB Write 16.65 ms 25.52 ms – 34.7%
4 KB Read 16.17 ms 18.41 ms – 12.2%
4 KB Write 16.63 ms 19.23 ms – 13.5%

Since these results are based on the SSD cache of the two SSHDs, we can see that the 1 TB WD Blue SSHD is using a faster SSD than the 1 TB Seagate Laptop SSHD.

 

Random CPU Utilization

WD Blue SSHD (WD10J31X) IOMeter Random Performance

Test 1 TB WD
Blue SSHD
1 TB Seagate
Laptop SSHD
Difference
512 KB Read 0.78% 0.45% + 73.3%
512 KB Write 0.85% 0.23% + 269.6%
4 KB Read 0.40% 0.17% + 135.3%
4 KB Write 0.44% 0.31% + 41.9%

The downside though is higher CPU utilization by the drive. Despite the large difference in percentage, this is really minor due to the high performance CPUs we use today.

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Sequential Throughput

WD Blue SSHD (WD10J31X) IOMeter Sequential Performance

Test 1 TB WD
Blue SSHD
1 TB Seagate
Laptop SSHD
Difference
512 KB Read 190.00 MB/s 108.31 MB/s + 75.4%
512 KB Write 102.77 MB/s 110.22 MB/s – 6.8%
4 KB Read 31.74 MB/s 52.48 MB/s – 39.5%
4 KB Write 32.12 MB/s 48.14 MB/s – 33.3%

These are the second most important tests for boot drives, and the most important tests for secondary storage drives. The large sequential transfer performance is particularly important because they are often used to store large game or media files, which are all practically larger than than 512 KB these days.

The 1 TB WD Blue SSHD was phenomenal at large reads, delivering a throughput of 190 MB/s. On the other hand, it was slightly slower at large writes, and 30-40% slower at small reads and writes.

 

Sequential Access Time

WD Blue SSHD (WD10J31X) IOMeter Sequential Performance

Test 1 TB WD
Blue SSHD
1 TB Seagate
Laptop SSHD
Difference
512 KB Read 2.76 ms 4.84 ms – 43.0%
512 KB Write 5.10 ms 4.76 ms + 7.2%
4 KB Read 0.13 ms 0.08 ms + 65.8%
4 KB Write 0.13 ms 0.08 ms + 50.1%

Since these results are based on the SSD cache of the two SSHDs, we can see that the 1 TB WD Blue SSHD is using a faster SSD than the 1 TB Seagate Laptop SSHD.

 

Sequential CPU Utilization

WD Blue SSHD (WD10J31X) IOMeter Sequential Performance

Test 1 TB WD
Blue SSHD
1 TB Seagate
Laptop SSHD
Difference
512 KB Read 1.09% 0.50% + 118.0%
512 KB Write 1.50% 1.63% – 8.0%
4 KB Read 4.80% 8.56% – 43.9%
4 KB Write 5.89% 8.95% – 34.2%

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