WD_BLACK SN850X PCIe 4.0 NVMe SSD 2TB

WD_BLACK SN850X is Western Digital's flagship gaming and performance SSD, engineered specifically for demanding workloads. With up to 7300 MB/s reads and optimized gaming performance, it competes directly with Samsung's best. The WD_BLACK series includes Game Mode 2.0 technology that predictively loads game assets for faster level loading. Available with optional massive heatsink for PlayStation 5 compatibility and superior cooling. Backed by WD's industry-leading 5-year warranty.

Specifications

{"MTBF":"1,500,000 hours","Capacity":"2TB","Protocol":"NVMe","Interface":"PCIe 4.0 x4","NAND type":"TLC","interface":"M.2 NVMe","DRAM cache":"Yes","Form factor":"M.2 2280","Endurance / TBW":"1,200 TBW","Random read IOPS":"1,000K IOPS","Heatsink included":"No","Random write IOPS":"1,200K IOPS","Encryption support":"AES 256-bit, TCG Opal","Sequential read speed":"7,300 MB/s","Sequential write speed":"6,600 MB/s"}

Expert Review

The WD_BLACK SN850X represents Western Digital's commitment to high-performance storage, utilizing their custom in-house controller and BiCS5 96-layer TLC NAND. While sequential specs are slightly lower than 990 PRO on paper, real-world gaming and application performance is virtually identical. The drive's Game Mode 2.0 uses predictive algorithms to load game assets intelligently, reducing stuttering and improving smoothness in open-world titles. Testing shows 2-5% faster game loading in some titles versus competing drives. The drive's strong sustained write performance (maintaining 3000+ MB/s even during long writes) makes it excellent for content creators who frequently work with large video files. The heatsink variant is specifically designed for PlayStation 5 internal expansion, meeting Sony's stringent requirements while keeping the drive cool during extended gaming sessions. For PC users, the heatsink version provides robust thermal management, keeping temps around 55-60°C under load versus 70-75°C for non-heatsink versions. The WD_BLACK Dashboard software offers performance monitoring, firmware updates, and drive health status, though it's less feature-rich than Samsung Magician. 1200TB TBW endurance matches the 990 PRO, and WD's warranty support is excellent. The 2TB capacity at this price point offers better value than Samsung while delivering 95-98% of the performance. Power efficiency is competitive at 6W active. DirectStorage support on Windows 11 future-proofs the drive for next-gen gaming. An excellent choice for gamers wanting top-tier performance without the Samsung premium.