SandForce was first to announce and preview its 2011 SSD controller technology. We first talked about the controller late last year, got a sneak peak at its performance this year at CES and then just a couple of months ago brought you a performance preview based on pre-production hardware and firmware from OCZ. Although the Vertex 3 shipment target was originally scheduled for March, thanks to a lot of testing and four new firmware revisions since I previewed the drive, the officially release got pushed back to April.

What I have in my hands is retail 120GB Vertex 3 with what OCZ is calling its final, production worthy client firmware. The Vertex 3 Pro has been pushed back a bit as the controller/firmware still have to make it through more testing and validation.

I'll get to the 120GB Vertex 3 and how its performance differs from the 240GB drive we previewed not too long ago, but first there are a few somewhat-related issues I have to get off my chest.

The Spectek Issue

Last month I wrote that OCZ had grown up after announcing the acquisition of Indilinx, a SSD controller manufacturer that was quite popular in 2009. The Indilinx deal has now officially closed and OCZ is the proud owner of the controller company for a relatively paltry $32M in OCZ stock.

The Indilinx acquisition doesn't mean much for OCZ today, however in the long run it should give OCZ at least a fighting chance at being a player in the SSD space. Keep in mind that OCZ is now fighting a battle on two fronts. Above OCZ in the chain are companies like Intel, Micron and Samsung. These are all companies with their own foundries and either produce the NAND that goes into their SSDs or the controllers as well. Below OCZ are companies like Corsair, G.Skill, Patriot and OWC. These are more of OCZ's traditional competitors, mostly acting as assembly houses or just rebadging OEM drives (Corsair is a recent exception as it has its own firmware/controller combination with the P3 series).

By acquiring Indilinx OCZ takes one more step up the ladder towards the Intel/Micron/Samsung group. Unfortunately at that level, there's a new problem: NAND supply.

NAND Flash is not unlike any other commodity. Its price is subject to variation based on a myriad of factors. If you control the fabs, then you generally have a good idea of what's coming. There's still a great deal of volatility even for a fab owner, process technologies are very difficult to roll out and there is always the risk of issues in manufacturing, but generally speaking you've got a better chance of supply and controlled costs if you're making the NAND. If you don't control the fabs, you're at their mercy. While buying Indilinx gave OCZ the ability to be independent of any controller maker if it wanted to, OCZ is still at the mercy of the NAND manufacturers.


Intel NAND

Currently OCZ ships drives with NAND from four different companies: Intel, Micron, Spectek and Hynix. The Intel and Micron stuff is available in both 34nm and 25nm flavors, Spectek is strictly 34nm and Hynix is 32nm.

Each NAND supplier has its own list of parts with their own list of specifications. While they're generally comparable in terms of reliability and performance, there is some variance not just on the NAND side but how controllers interact with the aforementioned NAND.

Approximately 90% of what OCZ ships in the Vertex 2 and 3 is using Intel or Micron NAND. Those two tend to be the most interchangeable as they physically come from the same plant. Intel/Micron have also been on the forefront of driving new process technologies so it makes sense to ship as much of that stuff as you can given the promise of lower costs.

Last month OWC published a blog accusing OCZ of shipping inferior NAND on the Vertex 2. OWC requested a drive from OCZ and it was built using 34nm Spectek NAND. Spectek, for those of you who aren't familiar, is a subsidiary of Micron (much like Crucial is a subsidiary of Micron). IMFT manufactures the NAND, the Micron side of it takes and packages it - some of it is used or sold by Micron, some of it is "sold" to Crucial and some of it is "sold" to Spectek. Only Spectek adds its own branding to the NAND.

OWC published this photo of the NAND used in their Vertex 2 sample:

I don't know the cause of the bad blood between OWC and OCZ nor do I believe it's relevant. What I do know is the following:

The 34nm Spectek parts pictured above are rated at 3000 program/erase cycles. I've already established that 3000 cycles is more than enough for a desktop workload with a reasonably smart controller. Given the extremely low write amplification I've measured on SandForce drives, I don't believe 3000 cycles is an issue. It's also worth noting that 3000 cycles is at the lower end for what's industry standard for 25nm/34nm NAND. Micron branded parts are also rated at 3000 cycles, however I've heard that's a conservative rating.

If you order NAND from Spectek you'll know that the -AL on the part number is the highest grade that Spectek sells; it stands for "Full spec w/ tighter requirements". I don't know what Spectek's testing or validation methodology are but the NAND pictured above is the highest grade Spectek sells and it's rated at 3000 p/e cycles. This is the same quantity of information I know about Intel NAND and Micron NAND. It's quite possible that the Spectek branded stuff is somehow worse, I just don't have any information that shows me it is.

OCZ insists that there's no difference between the Spectek stuff and standard Micron 34nm NAND. Given that the NAND comes out of the same fab and carries the same p/e rating, the story is plausible. Unless OWC has done some specific testing on this NAND to show that it's unfit for use in an SSD, I'm going to call this myth busted.

The Real Issue
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  • casteve - Thursday, April 7, 2011 - link

    Great review! Thanks for carrying the 120GB torch :)

    I'd love to see a couple of HDDs added to the 2011 bench (like they are in the 2010 bench) to keep the perspective in play.* Most people are still moving from an HDD to an SSD and not just upgrading their SSD's.

    * stuff a 120GB SSD in yer laptop for $200 to replace a 5400rpm HDD and improve gaming IOPS by 5x is more impressive than replacing an existing 120GB SSD with a newer one for $250 and improve gaming IOPS by 10%. Extreme example...but you get the idea.
    Reply
  • Gasaraki88 - Thursday, April 7, 2011 - link

    I want to thank you for writing this article and keeping the companies honest. Without smart people like you, companies will overstate performance and to the common person it will look fine because we don't have the proper tools to test.

    I'll been reading Anandtech for 11 years now. The quality is still top notch unlike some other sites I used to go to.
    Reply
  • cknobman - Thursday, April 7, 2011 - link

    Dont buy OCZ products.

    Anand and countless consumer reviews from Newegg have proved that OCZ does not put out a consistent and reliable level of product.

    Im not one for rolling the crap dice with my hundreds of hard earned dollars.
    Reply
  • hackztor - Thursday, April 7, 2011 - link

    LOL, okay go spend your hard earned money on last year performance intel new drives. Reply
  • seapeople - Thursday, April 7, 2011 - link

    Wow you got him there! Yeah, why doesn't he just buy an Intel drive. That would be funny because then he would have to wait 5.6 seconds to open Photoshop instead of 5.2 seconds. Or it would take a full 33 seconds to reboot instead of 35 seconds. I bet he's so unintelligent that he would actually accept crappy last-generation solid state drive performance like that at a lower price. Reply
  • semo - Friday, April 8, 2011 - link

    Corsair, patriot and many other SSD makers use SF controllers. You just have to be sure you know what firmware you're getting. You have to be much more careful with OCZ as you can't trust them to sell you what they claim on the box. Reply
  • Stargrazer - Thursday, April 7, 2011 - link

    It's awesome that you're reviewing the 120GB version first. It's the version that I believe most people would be most interested in getting, so it's great that we'll be able to see how it performs, rather than only seeing the higher numbers of a ~256GB version that's so expensive that most people would never get it. It's fantastic even. Did I mention that it's awesome?

    Unfortunately, since the ~128GB versions haven't always been reviewed in the past, this also means that we don't really have much to compare the numbers to. How do we know if the 120GB Vertex 3 is competitive if we don't know the performance of its competitors?

    I can understand if it might take a while to get the numbers for comparable versions of the 510, 310 and m4 (though I really hope that in the future you continue to press on for getting ~128GB versions in time for the initial reviews), but would it at least be possible to get the complete numbers for the 128GB version of the RealSSD C300? For some reason it doesn't seem to be in the IOmeter tests.

    Oh. Isn't it time that you stopped using "I didn't expect to have to debut this so soon" in the introduction to the 2011 Storage Bench? :)
    Reply
  • KenPC - Thursday, April 7, 2011 - link

    A humorous thought of little relevance. but.. if OCZ rebrands the Vertex 2 as the 2b to solidify performance specs. then as I shop I will be thinking....

    Is this OCZ drive a 2b or not 2b, that is the question.....
    Reply
  • Omid.M - Thursday, April 7, 2011 - link

    They saw Anand's Vibrams and knew he meant business (casual).

    :)
    Reply
  • sethm1 - Thursday, April 7, 2011 - link

    I was looking forward to the Vertex 3 as being the next best thing.
    And so was hoping for a more positive review (but yes appreciate the candor in the review).
    My question is, after all is said and done, is the Vertex 3 still better than the Vertex 2 (120GB versions)?
    Should I go out and get a version 2?
    Reply

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