OCZ Vertex 450 256 GB Review
Published by Marc Büchel on 23.05.13 (24137 reads)
With the Vertex 450 OCZ officially launches their second product that features 20 nanometer NAND from the Intel/Micron joint venture. With the Vertex 3.20 they introduced these 20nm chips to the market and now their equipping their faster Vertex 4 with the same NAND flash chips. We're really curious to see what they've come up with. The Vertex 450 with 256 Gigabyte could be a really interesting drive and when the price hits a sweet spot, then it will definitely sell well.
Specifications / Delivery
With the entire supply chain in their back OCZ it can now be expected from the company that the Vertex 460 is not only a very quick drive but also features an aggressive price tag. A closer look at the controller reveals, that there is the same Barefoot 3 M10 logic, that could be found with the Vertex 450 already. Apparently, since OCZ is now using latest Toshiba NAND there were some changes to the firmware necessary, in order to keep performance and endurance up as high as possible.
With the Vertex 460 you get OCZ's Barefoot 3 M10
controller which the company develops inhouse. According to the block diagram we
can see that the controller is based on an ARM architecture. Additionally OCZ
optimized the clock generator towards lower power consumption, which they
already did when they released the Vertex 450. In other words
this means, they've lowered the internal clock speeds in order to make the drive
more energy efficient. Furthermore this drive ships with AES 256 Bit encryption
as well as an ECC engine which is taking care of error corrections. On the right
hand side of the diagram you can see that OCZ equips the Vertex 460 with an
additional DRAM cache, which in the end helps improving performance. When it
comes to the NAND interface, OCZ uses and eight channel ONFI/Toggle interface.
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