AIDA64 Random Access Time
Version and / or Patch Used: 1.60
Developer Homepage: http://www.aida64.com
Product Homepage: http://www.aida64.com
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.
I was a bit surprised to see high read latency since this is an area where Plextor always seems to do well. The 4-channel design is likely the culprit, since the controller and flash relationship uses less interleaving. Still, the 11ms average is much better than anything offered by mechanical HDDs.
The Plextor M5M uses DRAM to cache where the data is located on the flash. This allows the drive to access that data quickly. The random write access time averages .05ms.
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