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OCZ Vector 256GB SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: Nov 27, 2012 5:00 pm
TweakTown Rating: 93%Manufacturer: OCZ Technology

HD Tune Pro


Version and / or Patch Used: 4.00

Developer Homepage:

Product Homepage:


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

Temperature display


HD Tune Pro gives us accurate read, write and access time results and for the last couple of years has been gaining popularity amongst reviewers. It is now considered a must have application for storage device testing.





In HD Tune Pro we recorded an average sequential read speed of 344MB/s. The maximum and minimum speeds weren't much different. If you recall, Vertex 4 had less than stellar single queue depth read and write performance. The drive was designed for heavy multitasking and low access times. Storage products can be tuned for workloads, as we displayed in the LSI MegaRAID 9265-8i article back in March. The MegaRAID is a RAID controller, but by manipulating the way data arrived to the SSD, we were able to fine tune the RAID controller.


SSD controllers are sort of the same, just think of each flash chip as an SSD and the SSD controller as the RAID component telling data where to go and how much to send in each burst. This is why we say the firmware and programming is just as important as the hardware. OCZ has one of the most experienced teams in the SSD firmware business.




Here we see the actual run from HD Tune Pro. The Vertex 4 256GB was around 50MB/s slower than Vector in this same test and the Vantage performance was really low. We're jumping the gun here a bit, but Vector in Vantage actually kicks ass this time. The reason why is the single queue depth access time. In this image you can see a 0.020 ms measurement, around 10x better than Vertex 4 256GB with firmware 1.5. We'll refer back to this later in the review.




OCZ's storage mode is back. First introduced on the Vertex 4 and now living on Vector. When your drive gets around 70% full the sequential performance drops to around 175MB/s. This feature keeps you from burning through your flash PE cycles.




Here we see the actual run on a fresh drive. The actual sequential maximum speed is just shy of 455MB/s with the file system in place. This is hella fast - one of the highest we've recorded on a 2.5" drive.


After storage mode kicks in and takes the drive down to around 175MB/s the average drops to just over 370MB/s. If you are not in storage mode, i.e. have less than 70% of the drive full, you won't ever see an average of 370MB/s.

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