In late June, Intel
introduced its first SSD based on 64-layer 3D TLC NAND flash memory - Intel SSD 545s. This SSD with SATA-interface is the first consumer-level storage device, which uses a new three-dimensional 64-layer memory of the second generation.
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The 545s is the heir to the
Intel SSD 540s last year, which should close certain gaps in the Intel roadmap. In the market for consumer solid-state drives, the IT giant has recently focused on promoting budget models based on Silicon Motion controllers. Moreover, in a number of SSDs, for example, in the same Intel SSD 540s, Intel refused to use its own flash memory in favor of SK Hynix planar chips.
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Intel SSD 545s is one step higher than its predecessor. The storage device uses an SMI SM2259 controller, which is an improved version of the SM2258 with higher performance. The new IMFT 3D TLC NAND of the second generation, possessing a large number of layers, also provides increased performance. The controller also works with
ECC memory - this makes 545s more resistant to data corruption.
Comparison of 545s and 540s specifications
For 512-gigabyte Intel SSD 545s, the manufacturer specifies a sequential read speed of 550 MB / s and a write speed of 500 MB / s. In the case of an arbitrary read, the drive's performance is about 75 thousand IOPS, and when writing - 90 thousand IOPS. According to Intel, the new SSD is superior to its predecessor in terms of speed and is able to compete with the Samsung 850 EVO and Crucial MX300. Approximately to the same level, the price of a new drive is reduced - $ 179. Intel SSD 545s outperforms its “endurance” parameters. Resource rewriting Intel SSD 545s, according
to the manufacturer, will be 288 TB.
The drive has already gone on sale, but due to the rather modest volumes of production of 64-layer memory, its availability is still seriously limited. Now represented only 2.5-inch SSD capacity of 512 GB.
However, Intel plans to use smaller 256Gb 64L TLC chips for SSD 545s versions of all volumes. Crystal 512Gb 64L TLC has not yet come into mass production, and the IT giant wants to release the entire line of consumer drives to the market as soon as possible. In the future, the Intel 545s lineup
will be
replenished with storage devices ranging from 128 GB to 2 TB. True, Intel did not name the specific dates.
Note that the work on the creation of 3D TLC NAND is successfully conducted by Toshiba. July 11, the company
announced the development of the world's first flash memory TLC BiCS FLASH with a bulk arrangement of crystals using interlayer connections (Through Silicon Via, or TSV). Samples will be presented to the public in the current half year.
The company's engineers have combined 8 crystals of 48-layer 3D NAND memory and created a 512 GB microcircuit. According to the manufacturer, the new memory will be used in the SSD of the upper price segment.
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