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Hitachi Deskstar 5K4000 4TB Hard Disk Drive Review - Benchmarks - AIDA64 Random Access Time

Hitachi GST, now part of Western Digital, has a new 4TB, 5,400 RPM drive featuring Low-power CoolSpin Technology.

By: | HDDs in Storage | Posted: Jul 27, 2012 6:21 pm
TweakTown Rating: 86%Manufacturer: Hitachi GST

AIDA64 Random Access Time


Version and / or Patch Used: 1.60

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AIDA64 offers several different benchmarks for testing and optimizing your system or network. The Random Access test is one of very few if not only that will measure hard drives random access times in hundredths of milliseconds as oppose to tens of milliseconds.


Drives with only one or two tests displayed in the write test mean that they have failed the test and their Maximum and possibly their Average Scores were very high after the cache fills. This usually happens only with controllers manufactured by JMicron and Toshiba.




The Hitachi GST 5K4000 isn't a dynamic platter design like the WD Red and Green Series. You get a solid 5,400 RPMs when the disk is in use without variation. In our chart we have a nice mix of 10K, 7.2K and 5.4K RPM drives. The 5.4K are obviously going to have the slowest access times because the head has to wait for the platter to move the data into position.




Measuring the write access time isn't as clear cut. If the drive uses the data buffer to cache writes, like the Seagate Barracuda ST300DM001 3TB, the low result is incredibly low. Of our three 5.4K models, the 5K4000 has the lowest average write access time.


Access times for strictly long-term storage devices are not as important as they are for boot disks. While everyone wants a fast reaction to a request, sequential data, data that is most likely to be stored on long-term storage, does not require low access times when transferred from place to place like random data.

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