SLC stores a single bit per cell, offering significantly faster writes and longer endurance over MLC or TLC flash. The second trick budget SSDs have been doing for a few years is “set” or dedicate a small portion of the NAND flash to operate as a faster SLC write cache. Naturally the BX300 features a 256MB or 512MB cache depending on model capacity. When shopping for budget SSDs, the quickest way to differentiate between drives is to check if a DRAM cache is included for reliable performance. This automatically gives the BX300 a leg up over its predecessor in both performance and endurance and makes it much better suited than the BX200 for sustained workloads. It is worth noting that while the previous BX200 drives utilized 128Gbit TLC NAND, the BX300 series reverts back to MLC with Micron’s latest 256Gbit 3D MLC NAND. The BX300 is Crucial’s latest budget-focused solid-state drive using the updated Silicon Motion SM2258 controller. With NAND prices staying steady consumers can readily save a few bucks (or quid) by sticking to SATA based SSDs, yet still enjoy most of the benefits flash based drives have to offer. Since Crucial introduced its first SATA 6Gb C300 SSD nine years ago, the SATA interface hasn’t really changed all that much.įaster interfaces like M.2 exist today, but even so, SATA 6Gb SSD’s continue to offer a measurable, significant performance upgrade over spinning mechanical drives that must be felt to be believed. While exotic interfaces and elaborate PCIe card solutions have come and gone over the years, the one constant has always been the SATA 6Gbps interface. Solid-states drives are nothing new Crucial (the consumer-focused brand of Micron Technology) has been making them for a full decade.
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