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Western Digital My Passport Studio 640 GB Portable Hard Disk Dive Review
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IO Meter

In these tests, we compared the performance of Western Digital My Passport Studio's FireWire and USB 2.0 interfaces.

 

Throughput (Random Access)

Test

   FireWire   

      USB      

Difference

512 KB Read

15.42 MB/s

10.14 MB/s

+ 52.1%

512 KB Write

21.74 MB/s

17.34 MB/s

+ 25.4%

4 KB Read

0.20 MB/s

0.20 MB/s

-

4 KB Write

0.41 MB/s

0.40 MB/s

+ 2.5%

 

Random Access Time

Test

   FireWire   

      USB      

Difference

512 KB Read

32.41 ms

49.09 ms

-34.0%

512 KB Write

22.99 ms

28.82 ms

- 20.2%

4 KB Read

19.19 ms

19.55 ms

- 1.8%

4 KB Write

9.49 ms

9.79 ms

- 3.1%

 

CPU Utilization (Random Access)

Test

   FireWire   

      USB      

Difference

512 KB Read

0.14%

0.79%

- 82.3%

512 KB Write

0.24%

0.86%

- 72.1%

4 KB Read

0.11%

0.23%

- 52.2%

4 KB Write

0.35%

0.39%

- 10.3%

 

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Page

Topic

1

Overview

2

Western Digital External Hard Disk Drives
Packaging

3

The 640 GB My Passport Studio
Usable Capacity
Specifications

4

A Closer Look

5

Testing The My Passport Studio

6

Surface Temperature
Transfer Rate Profile

7

WinBench 99 Test Results
Transfer Rate Range

8

IO Meter Random Access Performance

9

IO Meter Sequential Access Performance

10

Conclusion



 
   
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