The last few months have not been easy at OCZ. After long-lasting financial issues, the company filed for bankruptcy on November 27th and a week later Toshiba announced that it will be acquiring the assets for $35 million.

Yesterday OCZ announced that the acquistion has been completed and were finally able to shed some lights to the details of the deal. To my surprise, OCZ will continue to operate as an independent subsidiary and won't be integrated into Toshiba's own SSD team. I'm guessing Toshiba sees financial potential in OCZ and is hence keeping things as they are. The only change aside from the change of ownership is a new brand logo and name: OCZ is now called OCZ Storage Solutions to further emphasize the focus of the company. Last time I heard OCZ was looking for a buyer for its PSU business but it seems they've not found one yet.

Update 1/31: We finally have an official statement regarding warranties.

Update 2/1: OCZ has a buyer for its PSU division and we'll have more details in a couple of weeks. The RAM and cooling divisions have been discontinued a long while ago, though.

Comparison of OCZ's Barefoot 3 Based SSDs
  Vector 150 Vertex 460 Vector Vertex 450
Controller Indilinx Barefoot 3
NAND 19nm Toshiba 19nm Toshiba 25nm IMFT 20nm IMFT
Over-Provisioning 12% 12% 7% 7%
Encryption AES-256 AES-256 N/A AES-256
Endurance 50GB/day for 5 years 20GB/day for 3 years 20GB/day for 5 years 20GB/day for 3 years
Warranty 5 years 3 years 5 years 3 years

The Vertex 460 resembles OCZ's flagship Vector 150 a lot. In terms of hardware the only difference between the two is that the Barefoot 3 controller in the Vertex 460 is slightly lower clocked than the one in Vector 150. The Barefoot 3 in the Vector 150 runs at 397MHz while in the Vertex 460 it's clocked at 352MHz. The speed of the controller isn't proportional to the overall performance but there are scenarios (like intensive read/write workloads) where a faster controller will help.

Both drives actually use exactly the same NAND (identical part numbers) but each Vector 150 goes through more testing and validation cycles to make sure the higher endurance criteria is met. Even though the NAND should be the same in both drives, bear in mind that endurance specifications are always minimums -- one part can be more durable than the other as long as both meet spec. By doing additional validation, OCZ is able to pick the highest endurance parts and use them in the Vector 150, whereas lower quality chips (but good enough to meet the mainstream endurance requirements) end up in the Vertex 460. 

The choice of identical NAND in both models is indeed odd but I'm guessing that Toshiba had a hand in this. The Vertex 450 used Micron's NAND but obviously Toshiba doesn't want to use a competitor's NAND in their products, hence the Vertex 450 is replaced with the 460 and Toshiba NAND.

OCZ Vertex 460 Specifications
Capacity 120GB 240GB 480GB
Sequential Read 530MB/s 540MB/s 545MB/s
Sequential Write 420MB/s 525MB/s 525MB/s
4KB Random Read 80K IOPS 85K IOPS 95K IOPS
4KB Random Write 90K IOPS 90K IOPS 90K IOPS
Steady-State 4KB Random Write 12K IOPS 21K IOPS 23K IOPS

Similar to the Vector 150, the Vertex 460 switches to 12% over-provisioning. This seems to be an industry wide trend and to be honest I'm happy with that. The few percents extra makes a huge difference in terms of IO consistency, which in the end accounts for a better user experience. 

Test System

CPU Intel Core i5-2500K running at 3.3GHz (Turbo and EIST enabled)
Motherboard AsRock Z68 Pro3
Chipset Intel Z68
Chipset Drivers Intel 9.1.1.1015 + Intel RST 10.2
Memory G.Skill RipjawsX DDR3-1600 4 x 8GB (9-9-9-24)
Video Card Palit GeForce GTX 770 JetStream 2GB GDDR5 (1150MHz core clock; 3505MHz GDDR5 effective)
Video Drivers NVIDIA GeForce 332.21 WHQL
Desktop Resolution 1920 x 1080
OS Windows 7 x64

Thanks to G.Skill for the RipjawsX 32GB DDR3 DRAM kit

Performance Consistency & TRIM Validation
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  • blanarahul - Wednesday, January 22, 2014 - link

    The 250 GB 840 EVO achieves 260 MB/s write speeds. 120 GB EVO achieves 140 MB/s. 500 GB EVO should achieve 520 MB/s bit it only achieves 420 MB/s. Why?? Reply
  • blanarahul - Wednesday, January 22, 2014 - link

    I am talking about non-Turbowrite speeds btw. Reply
  • DanNeely - Wednesday, January 22, 2014 - link

    Having more NAND dies to multiiplex IO over only helps for some parts of the write process; and the more of them you have the less adding still more will help because other factors dominate more of the total time (Amdahl's law). As a result going to 500 from 250 gives less of a percentage boost than going to 250 from 120.

    I suspect in the case of the 500, because all the mid/top end drives are clustering in a narrow performance band, that SATA III bottlenecking is coming into play in addition to limitations within the SSD itself.
    Reply
  • blanarahul - Wednesday, January 22, 2014 - link

    Gee thanks. BTW, SATA III maxes out around 540 MB/s for writes. So it's a controller/firmware limitation. Reply
  • Gigaplex - Wednesday, January 22, 2014 - link

    It's not that simple. You don't have to hit maximum utilisation to start feeling the limitations of SATA III. Reply
  • lmcd - Thursday, January 23, 2014 - link

    I thought there weren't more packages but rather larger packages? If I'm wrong then yeah it's probably SATA limitations but if not it's because it's the same bandwidth allocated per packages as previously. Reply
  • lmcd - Thursday, January 23, 2014 - link

    *weren't more packages once 250 GB is met, in the case of this model. Reply
  • Novuake - Wednesday, January 22, 2014 - link

    Simple. Diminishing returns + limitations of SATA III. Reply
  • Shadowmaster625 - Wednesday, January 22, 2014 - link

    It is amazing Toshiba would sully their own name by placing it next to "OCZ". Reply
  • jragonsoul - Wednesday, January 22, 2014 - link

    But they really aren't, OCZ is still OCZ and they are still making their own drives. I see that as a smart move by them because if Toshiba would have swallowed the company and they made some SSD's I know at least me and my tech friends would have stayed well and far away until EXTENSIVE reviews appeared. Reply

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