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IO Meter
We compared the 1 TB Western Digital Scorpio Blue (WD10JPVT) to the 640 GB Western Digital Scorpio Blue (WD6400BEVT). For more performance comparisons, please take a look at The Hard Disk Drive Performance Comparison Guide.
Throughput (Sequential Access)
Test |
1 TB Scorpio Blue |
640 GB Scorpio Blue |
Difference |
512 KB Read |
113.56 MB/s |
86.53 MB/s |
+ 31.2% |
512 KB Write |
112.18 MB/s |
85.70 MB/s |
+ 30.9% |
4 KB Read |
20.11 MB/s |
19.14 MB/s |
+ 5.1% |
4 KB Write |
18.59 MB/s |
16.57 MB/s |
+ 12.2% |
Sequential Access Time
Test |
1 TB Scorpio Blue |
640 GB Scorpio Blue |
Difference |
512 KB Read |
4.62 ms |
5.78 ms |
- 20.1% |
512 KB Write |
4.67 ms |
5.84 ms |
- 20.0% |
4 KB Read |
0.20 ms |
0.20 ms |
- |
4 KB Write |
0.22 ms |
0.24 ms |
- 8.3% |
CPU Utilization (Sequential Access)
Test |
1 TB Scorpio Blue |
640 GB Scorpio Blue |
Difference |
512 KB Read |
1.75% |
1.59% |
+ 10.1% |
512 KB Write |
1.88% |
1.72% |
+ 9.3% |
4 KB Read |
11.39% |
10.21% |
+ 11.6% |
4 KB Write |
10.64% |
8.98% |
+ 18.5% |
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2 |
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3 |
• The Western Digital WD10JPVT |
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4 |
• Connectors & Jumpers, Breather Hole |
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5 |
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6 |
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7 |
• Business Disk WinBench 99 Results |
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8 |
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9 |
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10 |
