Samsung claims its drive will be the "industry's first 4-bit consumer SSD", but we'll have to see about that. Back in 2006 when SSDs were just starting to appear, the flash chips Samsung used were 70nm and stored just 4Gb allowing for a drive with 32GB of storage.
Samsung Electronics has confirmed capacities and performance for its planned family of quad-level cell (QLC) solid-state drives (SSDs), due to launch later this year, but is still silent on the most important part of the equation: price. Samsung also noted it's working on a 128GB quad level cell memory card for smartphones, which it reckons will lead to higher-performance memory storage in mobile devices. Making use of the latest 4-bit cell to pack even more data into a tiny footprint, the Samsung SATA drive will feature a 4TB capacity and reach speeds of up to 540MB/s read and 520MB/s write.
Typically, as data stored within a memory cell increases from three bits to four, the chip capacity per unit area would rise and the electrical charge (used to determine information from a sensor) would decrease by as much as 50%, making it considerably more hard to maintain a device's desired performance and speed.
And Samsung reckons this SSD tech will filter through the rest of the memory world, which could yield cheaper high-capacity SSDs for consumers.
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"Samsung's new 4-bit SATA SSD will herald a massive move to terabyte-SSDs for consumers".
The company also expects to provide M.2 NVMe SSDs for enterprises and start mass production of 4-bit 5th-generation V-NAND. We now have no indication on pricing. In the upcoming 4TB drive, Samsung says that 32 of the aforementioned V-NAND chips are utilised.