The first production in the SSD NAND-flash memory with a three-bit TLC-cell appeared in September last year - it was a series of solid state drives Samsung 840. The new controllers Samsung - MDX - have enabled 840 Pro series drives to outperform the vaunted OCZ Vector, and 840 Series - bet-speed SSD Corsair Neutron GTX or OCZ Vertex 4. This morning, South Korea's Samsung has introduced a new series of SSD on a three-bit memory, which, apparently, is going to replace the 840 series. We meet the series 840 EVO .
The new drives have a new controller - MEX - and a new class of memory "10 nm".
The main difference from the older 840 series : the writing speed raised more than twice. We can say that the series 840 was identical to the EVO series 830 for sequential write speeds and even exceeded it, but kept the level of values IOPS for random read / write characteristic , recall, sequential write speed were equal to 130-240 MB / s, depending on storage capacity, while the write speed 840 EVO series are 520-540 MB / s (410 MB / s for the 120 GB model). The growth rate is due to new technology buffer operations - TurboWrite.
The international sale of Samsung 840 EVO Series SSD will be in the next month.