Western Digital introduced the WD Blue SN580 NVMe bufferless SSDs. These are the first devices in the WD Blue NVMe PCIe 4.0 lineup to feature nCache 4.0 technology.
The WD Blue SN580 series of drives is aimed at creative enthusiasts and professionals, but gamers and regular PC and laptop users might also like the novelties due to their low cost. The series includes drives from 250 GB to 2 TB.
The manufacturer specifies sequential read and write speeds of up to 4150 MB/s for the most extensive models with 1 and 2 TB. A read speed of 4000 MB/s and a write speed of 2000 or 2600 MB/s are specified for the newer models with 250 and 512 GB. Random read performance for new products ranges from 240,000 IOPS for the younger model and up to 600,000 IOPS for older models, and random write IOPS from 470,000 to 750,000.
WD Blue SN580 drives feature nCache 4.0 technology with hybrid SLC cache to accelerate large file transfers. In addition, SSDs are claimed to have low power consumption. According to the AnandTech portal, the WD Blue SN580 drives use 112-layer BiCS 5 3D TLC NAND flash memory chips, along with a SanDisk 20-82-10082 quad-channel controller. The same chip combination is used in the SSD model WD_Black SN770. True, the latter’s firmware is optimized for gaming loads, and the WD Blue SN580 software focuses on workloads and lower power consumption.
For WD Blue SN580 with a volume of 250 and 512 GB and 1 and 2 TB, the resource is declared with 150, 300, 600 and 900 TBW (terabytes of overwritten information), respectively. All new products come with a five-year manufacturer’s warranty. The new items were priced at $28, $32, $50, and $110, respectively.