These products are the WD_Black SN850X — the successor to Western Digital’s SN850 — and the WD_Black P40. Both drives are SSDs, but only the former is…
In brief: A speedy NVMe drive (even a non-PCIe 4.0 unit) will dramatically boost both general drive operations and game boot and load times — their high read and write speeds ensure that. However, Western Digital feels there’s still room for improvement in other areas and has introduced two new SSDs to its WD_Black product line to fill those gaps. These products are the WD_Black SN850X — the successor to Western Digital’s SN850 — and the WD_Black P40. Both drives are SSDs, but only the former is designed to fit into a PCIe 4.
