OCZ Vertex 4 Review (256GB, 512GB)
by Anand Lal Shimpi on April 4, 2012 9:00 AM ESTAnandTech Storage Bench 2011 - Light Workload
Our new light workload actually has more write operations than read operations. The split is as follows: 372,630 reads and 459,709 writes. The relatively close read/write ratio does better mimic a typical light workload (although even lighter workloads would be far more read centric).
The I/O breakdown is similar to the heavy workload at small IOs, however you'll notice that there are far fewer large IO transfers:
| AnandTech Storage Bench 2011 - Light Workload IO Breakdown | ||||
| IO Size | % of Total | |||
| 4KB | 27% | |||
| 16KB | 8% | |||
| 32KB | 6% | |||
| 64KB | 5% | |||
Our light workload is far more representative of a mainstream client workload (read heavy) and this is where the Vertex 4's sequential read performance hurts it the most. The Samsung SSD 830 ends up being considerably faster here. Once again, if we look at the breakdown of reads and writes we see why:
Read performance is around half of the best performers, while write speed is around 30% better. The combination results in competitive but not class-leading performance.If OCZ is able to deliver, at a minimum, Octane levels of read performance, the Vertex 4 should find itself much higher in the overall charts.
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hechacker1 - Wednesday, April 4, 2012 - link
I'm not really sure if they are buffering that much data. I'm betting a lot of it is to cache the state of the available flash (tables and bitmaps), and to provide lots of room so you can use memory intensive algorithms to allocate, sort, and combine data before it gets place on the flash.Even with some cache, just because the SSD is so fast, it's going to empty it in 1 second.
vegemeister - Monday, May 7, 2012 - link
As long as it's not too much RAM to write out before the energy in the caps runs out, it's not really a problem.7Enigma - Wednesday, April 4, 2012 - link
But you can show all these pretty specs and graphs but until you fix something like this catastrophe I will avoid your SSD's like the plague:Oh and what controller is in this beauty......Indilinx Everest!
http://www.newegg.com/Product/Product.aspx?SID=PSa...
Comdrpopnfresh - Wednesday, April 4, 2012 - link
It's nice to see the AES-256 encryption on it. That'll come in handy when the drive dies and has to be sent back to OCZ.I have 2 vertex2's and a vertex3, all of which died, and I have yet to eat or rma- OCZ provides no way to fulfill the warranty without compromising the security of user data. Used to be a big fan of OCZ, and loved their ssds... until this situation arose THREE TIMES.
vegemeister - Monday, May 7, 2012 - link
Sure they do -- encrypt it yourself in software. Anyway, why would you trust OCZ not to be able to decrypt data encrypted by closed-source firmware designed by OCZ?Hurk - Wednesday, April 4, 2012 - link
where is the data for the 128gb version? it will be significantly different from the 256/512, and since im really loving SSD caching on new system builds, the smaller drive is more important to see the numbers for than the 256/512 for me.Kristian Vättö - Wednesday, April 4, 2012 - link
Manufacturers often send bigger capacities for reviews (they are the highest performing ones, after all). I'm sure there will be a 128GB review once we get one, which is hopefully sooner than later :-)Reikon - Wednesday, April 4, 2012 - link
Nice referral link there.JarredWalton - Thursday, April 5, 2012 - link
No worries -- they've been marked as spam and are gone now. Let this serve as a warning to others: if you try to put in a referral link in a comment and we mark you as spam, all your comments go bye bye!iceman98343 - Thursday, April 5, 2012 - link
sorry about that. c an you delete my last entry below. didn't see any TOS against referral links.