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IO Meter (Random Access)
We compared the 1 TB WD Blue Slim (WD10SPCX) to the 1 TB WD Blue (WD10JPVT). For more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.
Throughput (Random Access)
Test |
1 TB WD Blue Slim |
1 TB WD Blue |
Difference |
512 KB Read |
15.91 MB/s |
16.65 MB/s |
- 4.4% |
512 KB Write |
17.00 MB/s |
17.40 MB/s |
- 2.3% |
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 Blue Slim |
1 TB WD Blue |
Difference |
512 KB Read |
32.94 ms |
31.46 ms |
+ 4.7% |
512 KB Write |
30.83 ms |
30.12 ms |
+ 2.4% |
4 KB Read |
17.84 ms |
15.91 ms |
+ 12.2% |
4 KB Write |
17.62 ms |
16.80 ms |
+ 4.9% |
CPU Utilization (Random Access)
Test |
1 TB WD Blue Slim |
1 TB WD Blue |
Difference |
512 KB Read |
0.22% |
0.15% |
+ 46.7% |
512 KB Write |
0.27% |
0.14% |
+ 92.9% |
4 KB Read |
0.18% |
0.12% |
+ 50.0% |
4 KB Write |
0.25% |
0.36% |
- 29.7% |
IO Meter (Sequential Access)
We compared the 1 TB WD Blue Slim (WD10SPCX) to the 1 TB WD Blue (WD10JPVT). For more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.
Throughput (Sequential Access)
Test |
1 TB WD Blue Slim |
1 TB WD Blue |
Difference |
512 KB Read |
114.77 MB/s |
113.85 MB/s |
+ 0.8% |
512 KB Write |
113.91 MB/s |
112.58 MB/s |
+ 1.2% |
4 KB Read |
51.66 MB/s |
49.70 MB/s |
+ 3.9% |
4 KB Write |
40.21 MB/s |
42.31 MB/s |
- 5.0% |
Sequential Access Time
Test |
1 TB WD Blue Slim |
1 TB WD Blue |
Difference |
512 KB Read |
4.57 ms |
4.60 ms |
- 0.7% |
512 KB Write |
4.60 ms |
4.66 ms |
- 1.2% |
4 KB Read |
0.08 ms |
0.08 ms |
- 1.8% |
4 KB Write |
0.10 ms |
0.10 ms |
+ 1.4% |
CPU Utilization (Sequential Access)
Test |
1 TB WD Blue Slim |
1 TB WD Blue |
Difference |
512 KB Read |
0.59% |
0.43% |
+ 37.2% |
512 KB Write |
0.68% |
0.47% |
+ 44.7% |
4 KB Read |
8.07% |
5.65% |
+ 42.8% |
4 KB Write |
8.47% |
4.68% |
+ 81.0% |
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