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IOPS Scaling (Sequential)

In these tests, we tested each drive's ability to tackle multiple input/output operations - a very important attribute if you wish to use the new VelociRaptor or SSD in a server, or server-type application. This reflects not only on the drive's raw performance but also that of its controller and firmware.

 

4 KB Sequential Read

Here, the 1 TB VelociRaptor was really fast, partly due to its use of the Advanced Format Technology, and partly because it has a better controller. It actually mimicked the performance of the Intel X25-M G2, albeit about 18% slower.

 

4 KB Sequential Write

Interesting, in small sequential writes, the 1 TB VelociRaptor tracked the performance of the Intel 520 Series SSD, while the 600 GB VelociRaptor tracked the performance of the Intel X25-M G2 SSD!

 

512 KB Sequential Read

In large sequential reads, the SSDs pulled away, thanks to the ability to use multiple read channels to pull a tremendous amount of data from the flash memory.

 

512 KB Sequential Write

The VelociRaptors caught up in large, sequential writes, where they both beat the Intel X25-M G2 SSD, and the 1 TB VelociRaptor came rather close to the performance level of the Intel 520 Series SSD.

 

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Page	Topic
1	• VelociRaptors Vs. Solid State Drives • Western Digital VelociRaptors • Intel Solid State Drives
2	• Testing The HDDs & SSDs • Maximum Surface Temperature • Data Transfer Profile
3	• WinBench 99 Test Results • Transfer Rate Range
4	• IO Meter Random Access Performance
5	• IO Meter Sequential Access Performance
6	• IOPS Scaling (Random Access)
7	• IOPS Scaling (Sequential Access)
8	• Cost/GB, Cost-Performance, Overall Value
9	• Conclusion, Lowest Prices