Lexar is showing off a PCIe 4.0 SSD with 7GB/s read sequential speeds
According to technology publication Where Consumers Come First (Wccf), storage manufacturer Lexar is working on a prototype PCIe 4.0 SSD that’s capable of achieving sequential read speeds up to 7GB/s.
Wccf doesn’t share too many details about this prototype SSD, but does say the M.2 PCI-Express 4.0 SSD drive, which uses a 96-layer TLC-NAND, was able to hit ‘6442 MB/s in sequential reads and 4246 MB/s in sequential writes’ using CrystalDiskMark and IOMeter benchmarking programs.
These speeds far surpass the speeds currently found in most PCI-e 4.0 SSDs, which tend to max out with read and write speeds of 5GB/s and 4GB/s, respectively. The drive is backward compatible with PCIe 3.0 slots, but in order to get the maximum speeds, the drive requires a CPU that supports PCIe 4.0. Currently, only AMD Ryzen processors offer PCIe Gen 4 support, so Intel processors, which only offer PCIe 3.0 support at this time, will be limited to the maximum speed of the PCIe 3.0 slots.
According to Wccf, the SSD ‘is planned to be available in 512GB, 1TB, and 2TB capacities.’
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