The Samsung Series 830 SSDs have gotten their successor – the newly released Samsung 840 SSD line, which for the first time ever arrives with TLC NAND memory.
The Series 840 SSDs will in fact be divided in two lines – the 840 Pro line for more advanced users and a regular 840 line for regular users but for the most part the two sub-lines are the same. The entire 840 line comes with the Samsung MDX memory controller and NAND flash memory but there’s a slight difference here – the 840 Pro comes with 2-bit-per-cell MLC NAND, while the regular 840 Series features 3-bit-per-cell TLC NAND memory. The 840 Pro also has a firmware, which is tuned for heavier workloads consisting of more writes and random IOs, whereas the 840 is designed more towards read centric (i.e. consumer) workloads.
We haven’t mentioned something important though – and this is capacity and performance. The regular 840 series offers SSDs with capacities of 120 GB (109.99 USD), 250 GB (199.99 USD) and 500 GB (449.99 USD), while the faster 840 Pro series offers capacities of 64 GB (99.99 USD), 128 GB (149.99 USD), 256 GB (269.99 USD) and 512 GB (599.99 USD).
As to performance the 500 GB model of the regular 840 series offers 540 MB/sec of sequential read speed and 330 MB/sec of sequential write speed. Random read reaches 98K IOPS, while random write is 70K IOPS. The Pro series is a bit faster, the 512 GB model offers 540 MB/sec of sequential read speed and 450 MB/sec of sequential write speed. Random read reaches 100K IOPS, while random write achieves 78K IOPS.
The 840 and 840 Pro series will be available for purchase on October 15.
Source: Anandtech