Micron introduces the first 232 layer NAND flash client SSDs

Micron introduces the first 232-layer NAND flash client SSDs

Micron has introduced the world’s first 232-layer NAND flash client SSDs. The Micron 2550 Series SSDs will be available in three M.2 form factors: 2280, 2242, and 2230. All support PCIe 4.0 and are offered in 256GB, 512GB, and 1TB. The new items are primarily intended for OEMs of PCs and laptops, but of course they will also appear in stores, such as the current 2450.

    Image source: Micron

Image source: Micron

Micron Vice President Praveen Vaidyanathan notes that one of the characteristics of the new SSD series is its high energy efficiency.

In comparison, previous 2450-series SSDs consume less than 3mW in sleep mode and less than 400mW in active standby mode, while consuming less than 5.5W. With the new Micron 2550 drives, the developers have worked on the power consumption of SSDs in sleep and standby modes. In the first case, the indicator fell to less than 2.5 mW, and in the second – to less than 150 mW. At the same time, the power consumption in active mode remained the same – less than 5.5 watts. According to the manufacturer, the lower idle power consumption of the new SSD series allows the same laptops to better conserve battery life and extend their battery life.

The performance of the new SSDs, based on 232-layer NAND flash memory chips, has grown compared to the previous generation of drives based on Micron’s less advanced 176-layer memory. Micron’s earlier generation of flash memory used a four-tier architecture. The transition to a six-plane enabled a 50% increase in data transfer rate (up to 2.4 GB / s) via the ONFI 5.0 interface, which increased the bandwidth of the memory chip in general.

The previous generation SSD 2450 delivered speeds of up to 3.6 GB/s in reads and up to 3 GB/s in writes. With the new 2550 series drives, these numbers have increased to 5 and 4 GB/s, respectively. Because of this, the performance of drives in random reads and writes has also increased. If for previous models of the 2450 series these values ​​​​were 450 and 500 thousand IOPS, then for the new series they are the same – 550 and 600 thousand IOPS, respectively. Micron claims its 2550 drives are faster than the competition in PCMark 10.

The endurance index for the Micron 2550 series of SSDs remained the same as for the previous 2450 models. A resource of 150 TB of overwritten information is indicated for a 256 GB drive, 300 TB for a 512 GB model, and 1 TB for the older one – 600TB.

    Image source: Forward Insights

Image source: Forward Insights

Micron believes PCIe 4.0 drives will remain the best choice for PC and laptop users for a long time to come. The company has no plans to release PCIe 5.0 SSD models yet.

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Dylan Harris

Dylan Harris is fascinated by tests and reviews of computer hardware.

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