HD Tune Pro
Version and / or Patch Used: 4.00
Developer Homepage: http://www.efdsoftware.com
Product Homepage: http://www.hdtune.com
HD Tune is a Hard Disk utility which has the following functions:
Benchmark: measures the performance
Info: shows detailed information
Health: checks the health status by using SMART
Error Scan: scans the surface for errors
HD Tune Pro gives us accurate read, write and access time results and for the last couple of years has gained popularity amongst reviewers. It is now considered a must have application for storage device testing.
OCZ artificially limits QD1 sequential reads to keep performance available for multitasking. It's a brilliant way to increase the user experience, but limits the drive in some synthetic benchmarks. An example of the user experience increase is when you are transferring a large video from the SSD to another drive, you have additional bandwidth to continue surfing the web or other activity.
There is another technology feature that that gives us a false rating when writing sequential data to the drive across the user LBA span. Vector 150 120GB manages to write up to 421 MB/s when fresh out of the box. We'll look at threaded sequential performance with a dirty drive later in this review.
HD Tach - Sequential Write Performance after Random Writes
Here we see sequential read and write performance after a number of random writes. The overprovisioned space on Vector 150 means we haven't written to all of the drive yet, but we start to see where consumer steady state performance falls to. We measured a few sub 150 MB/s hits on the writes with the lowest data point at 120 MB/s.
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