Micron’s 7450 SSD series gets a memory update. The PCIe 4.0 SSDs are upgraded to the new 176-layer TLC NAND, which results in higher transfer rates and more IOPS than currently possible in the 7400 series. Offered in a total of seven formats and up to a capacity of 15.36 terabytes, the Micron 7450 SSDs will be available.
Micron 7450 SSDs: Memory upgrade in 7 formats
Micron’s 7400 series already presented itself broadly in a total of seven formats. The new Micron 7450 SSD series also comes in a similar variety, for example in U.3, E1.S or M2 format.
In contrast to the 7400 series with 96-layer NAND, the new model series uses the new 176-layer generation with a higher surface density. According to the manufacturer, its die should be around 30 percent smaller, which enables more chips on one wafer.
At the same time, the Micron 7450 SSDs benefit from the higher speed of the new flash memory. In a direct comparison, the read and write latency is said to have been improved by 35 percent, and the company also relies on a NAND interface (ONFi) accelerated to 1,600 MT/s.
The Micron 7450 SSD series uses PCIe 4.0 x4 and relies on all components manufactured directly from a single source at Micron (including controller, NAND and DRAM). The series is divided into Pro and Max models, with the former offering higher storage capacity, while the Max models have less capacity but more spare memory, which benefits performance and durability.
The U.3 variant of the 7450 with 2.5 inches thus realizes up to 15.36 TB – the predecessor still had a maximum of 7.68 TB. The Max model in the same form factor, on the other hand, reaches a maximum of 12.8 TB, but has more write predecessors (IOPS) and a longer shelf life in the form of Total Bytes Written. 70,000 terabytes are possible here compared to 28,000 TB for the Pro model.
At the same time, there is, across the board, higher performance than even the 7400 generation. The fastest models now reach 6,800 and 5,600 MB/s in sequential read or write, respectively, while the 7400 came in at a maximum of 6,600/5400 MB/s at peak. Especially the smallest version with 960 GB memory gains noticeably in U.3 and E1.S format.
Availability from April 2022
The new Micron 7450 SSDs for business customers are to be available across the board from April 2022. Currently, the storage solutions are still going through the certification process. Only recently, Micron had also introduced a QLC variant of the 176-layer NAND and launched it in the Micron 2400 client SSD series, so a launch in Micron’s consumer segment is also foreseeable.