WD_BLACK SN850X 4TB

This wd_black sn850x 4tb review covers the SSD ranked second of eight in our guide, where it carries the Best value for gaming PCs label. The Sandisk WD_BLACK SN850X 4TB is a PCIe 4.0 NVMe drive with 4,000 GB of storage, rated at 7,300 MB/s reads and 6,300 MB/s writes. It costs $699.99 and holds 17,586 Amazon ratings at 4.7 stars, the largest review base in the guide. Buyers who want a fast drive for a gaming PC or a PlayStation 5 get near-flagship speed without paying PCIe 5.0 prices, and the five-year limited warranty matches the Samsung competition.

Day to day, the 7,300 MB/s read rating means game loads and level transitions happen in seconds, and the 6,300 MB/s write rating keeps patch installs and large file copies from stalling. In practice, the 4,000 GB capacity lets you keep a full library installed, so you stop deleting games to make room. Sandisk uses TLC 3D NAND here, which holds speed better than cheaper flash during long writes. Meanwhile, the M.2 2280 form factor fits most modern motherboards and laptops, and Sandisk lists the drive as compatible with the PlayStation 5. On top of that, the WD_BLACK Dashboard handles firmware checks and drive health monitoring, so setup in a new build takes minutes.

At $699.99, the WD_BLACK SN850X 4TB is the value pick in this guide, since it costs about $160 less than the Samsung 990 PRO 4TB for comparable PCIe 4.0 speed. However, this model has been replaced by a newer Sandisk generation, so stock and pricing can drift. By contrast, the PCIe 5.0 drives on our list roughly double the read speed, which matters if you move enormous files daily. Even so, for gaming and PS5 upgrades that extra bandwidth rarely shows up in real frame times. If you want the biggest 4 TB library for the least money, this is the drive to buy.