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OCZ Technology Vector 150 120GB SSD Review - Benchmarks - Sequential Performance

OCZ Technology Vector 150 120GB SSD Review
Vector 150 120GB comes with 128GB of NAND flash. Overprovisioning moves the user capacity down to 120GB, but steady state performance gets a boost. (NASDAQ:OCZ)
By: | SSDs in Storage | Posted: Nov 7, 2013 11:01 pm
TweakTown Rating: 93%Manufacturer: OCZ Technology

HD Tune Pro


Version and / or Patch Used: 4.00

Developer Homepage:

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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 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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