OCZ Vertex 460 240GB in Detail
Also using the updated Barefoot 3 platform, the Vertex 460 can be viewed as a more affordable modification of the Vector 150 or an updated Vertex 450. However, its packaging doesn’t give you any hint that it is a mainstream rather than flagship model. The box is as large as the Vector 150’s and uses a restrained black color scheme. Interestingly, there is no mention of the fact that the SSD is based on the Indilinx Barefoot 3 controller although earlier OCZ used to show off its Indilinx Infused logo wherever possible.
The accessories are the same as you get with the Vector 150: an adapter to install the SSD into a 3.5-inch bay, a promo sticker, and a key for Acronis True Image HD you can download from OCZ's website.
The exterior design of this model is quite austere due to the dark laconic label on its top. The case is 7 mm in height, making it compatible with slim ultrabooks. It must be noted, however, that the SSD is about twice as heavy as popular products of the same form-factor.
The more affordable Vertex 460 uses the same PCB as the Vector 150 and most of the chips are identical, too. The flash memory is the same, for example. Although the Vertex 460 is priced 20-25% cheaper than the Vertex 460, both feature Toshiba’s 19nm MLC NAND flash memory with Toggle Mode interface. The 240GB version of the Vertex 460 contains 16 Toshiba TH58TEG7DDJBA4C chips, each of which incorporates two NAND devices.
It is the controller that makes the difference between the Vertex 460 and the Vector 150. The former uses a revision M10 chip of the Indilinx Barefoot 3 controller we know from the Vertex 450 model. The M10 revision has a clock rate of 350 MHz as opposed to the M00 revision's 400 MHz. That's why the Vertex 460 has somewhat lower specs than its senior cousin. The 512MB DDR3 SDRAM buffer (made of two 256MB Micron D9LGK chips) is also slower in the Vertex 460, working at 1333 rather than 1600 MHz.
Here are the official specs of the Vertex 460 240GB:
- Controller: Indilinx Barefoot 3 M10
- Interface: SATA 6 Gbit/s
- Flash memory: Toshiba’s 19nm MLC NAND with Toggle Mode interface
- Storage capacity: 240 GB
- Cache memory: 512 MB
- Sequential read speed: 540 MB/s
- Sequential write speed: 525 MB/s
- Random read speed (in 4KB data blocks): 85,000 IOPS
- Random write speed (in 4KB data blocks): 90,000 IOPS
As suggested by their market positioning, the Vertex 460 is slower than the Vector 150, yet the difference is very small. The more expensive model is just a few percent faster in terms of its specified speed. The updated Vertex looks good in comparison with its predecessor Vertex 450. While the transition to Toshiba’s 19nm flash memory has lowered the speed of the Vector series a little, we don't see the same with the Vertex series. The new model is as good as the Vertex 450 or even better. For example, the 120GB Vertex 460 is 30-40% faster than the same-capacity Vertex 450 at writing. As for the 240GB Vertex 460, it is equal to the 256GB Vertex 450 in its specs.
So it looks like the main reason for OCZ to position its Vertex 460 lower than the similarly designed Vector 150 is the shorter service life. The Vertex 460 comes with a 3-year warranty and the user is supposed to write no more than an average 20 gigabytes of data daily. The total amount of data that can be written is 21.9 terabytes or only one fourth of the Vector 150's. We don't know for sure if the Vector 150 is equipped with higher-quality flash memory chips but the fact is that the Vertex 460 has the same firmware with improved flash memory management as its senior cousin.