Crucial P310 4TB NVMe SSD vs WD Black SN850X 4TB NVMe SSD

Both are 4TB PCIe 4.0 drives aimed at gamers, and the WD Black SN850X is the stronger pick for a PC or PS5 build: it reads up to 7,300 MB/s and writes up to 6,600 MB/s, has a DRAM cache and a 5-year warranty. The Crucial P310 is DRAM-less with a lower endurance rating, so it suits laptops, handhelds and secondary storage where power draw and fit matter more than peak speed. Owners rate both highly, with the SN850X slightly ahead on ratings and on sustained-write behavior.

• Choose the Crucial P310 if you want a low-power, DRAM-less 4TB drive for a laptop, Steam Deck or a secondary game library and don't need the fastest sustained writes.
• Choose the WD Black SN850X if you are building or upgrading a gaming PC or PS5 and want top sequential speeds, a DRAM cache and a 5-year warranty.