OCZ Z-Drive R4 CM88 (1.6TB PCIe SSD) Review
by Anand Lal Shimpi on September 27, 2011 2:02 PM EST- Posted in
- Storage
- SSDs
- OCZ
- Z-Drive R4
- PCIe SSD
Sequential Read/Write Speed
To measure sequential performance I ran a 1 minute long 128KB sequential test over the entire span of the drive at a queue depth of 1. The results reported are in average MB/s over the entire test length. These results are going to be the best indicator of large file copy performance.
Again we see that low queue depth transfers don't stress the Z-Drive enough to flex its muscles.
Sequential Performance vs. Transfer Size (ATTO)
I stopped putting these charts in our reviews (although I do include the data in Bench) because they are generally difficult to read. Here we're only going to look at three drives though: a Vertex 3, RevoDrive 3 X2 and the Z-Drive R4 CM88:
Now we're starting to see something. If you can't scale with queue depth, scaling up the transfer size seems to do the trick. After about 64KB the Z-Drive R4 starts to pull away fro the RevoDrive 3 X2, peaking at just over 2.5GB/s!
Read performance is even more impressive: the Z-Drive R4 manages just under 3GB/s for 2MB transfer sizes.
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geddarkstorm - Wednesday, September 28, 2011 - link
^ Thiscervantesmx - Wednesday, September 28, 2011 - link
I agree 100%GTRagnarok - Tuesday, September 27, 2011 - link
"We have a preproduction board that has a number of stability & compatibility OCZ tells us will be addressed..."I think a word is missing here.
icrf - Tuesday, September 27, 2011 - link
Also, you missed the protocol on the last link on the first page (the one to ssd bench) and it 404's nowAnand Lal Shimpi - Tuesday, September 27, 2011 - link
Fixed both! Thank you!Take care,
Anand
FATCamaro - Tuesday, September 27, 2011 - link
OOH OOH Let me guess!!!Never??
As in :
"We have a preproduction board that has a number of stability & compatibility OCZ tells us will NEVER be addressed..."
vodkapls - Tuesday, September 27, 2011 - link
Isn't it the fact that the revodrive 3 x2 use asynchronous memory that makes it so much slower than the r4 ?Anand Lal Shimpi - Tuesday, September 27, 2011 - link
Great catch! I hadn't even thought of that but it's definitely a possibility :)Take care,
Anand
jebo - Tuesday, September 27, 2011 - link
I just can't take OCZ seriously from a reliability standpoint. I would love to know what the failure rate is like on OCZ's desktop offerings. I personally am in the process of my 3rd RMA of an OCZ SSD during the past 2 years.I think Intel, Crucial (or, judging by the last review, Samsung) will make my next SSD. I can only rebuild windows and piece together backups so many times before I say enough is enough.
dilidolo - Tuesday, September 27, 2011 - link
What's the point to develop enterprise product if no enterprise is going to buy?I don't think any enterprise will trust OCZ.