With good reason OCZ didn't send reviewers the smallest capacity Vertex 4 for the big launch last month. The 128GB size looked puny on paper with a little whimper of write performance, just 200MB/s. The read performance was pretty good at 535MB/s, but in our initial review of the larger models, the single thread read speed was around just 200MB/s. That would of left the Vertex 4 128GB in a cat fight against some very impressive SATA III drives, all of which are capable of breaking 200MB/s even when 90% full of data.
Yesterday we published an article with a new firmware for the Vertex 4 series. At the time we didn't have a 128GB drive on hand to test, but a new day brings new adventures. The new firmware we tested yesterday was version 1.4 R4 and it was a reviewer only release. OCZ has now sorted out a few bugs and the firmware version is up to 1.4 R6. This new R6 revision is available on OCZ's website in the firmware update section so we don't feel like we're teasing you with a piece of software that you can't get on your own now.
With the new firmware OCZ's baby Vertex 4 grows up a bit. The whimper is now an adult roar and the stated performance shows it. The read speed has increased from 535MB/s to 550MB/s, right in line with the Vertex 3 models which OCZ is looking to bury in the pages of history. The largest improvement comes in the write category, now a respectable 420MB/s - up from the 200MB/s at launch day.
In just one month's time the OCZ Vertex 4 went from being an outcast of the pride to a true contender for king of the 128GB jungle.