WD_BLACK SN850X 2TB NVMe SSD - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s write speeds, Gaming Expansion, High…
Best for
Best NVMe Gen4
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$349.99
Updated Jun 27, 2026 · 1 min read
Sources behind this verdict
11 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
The WD_BLACK SN850X is the other heavyweight in the Gen4 tier, and across the reviewers we read it trades blows with the 990 PRO. The verified-tier tomshardware.com review describes performance as 'near the top of the heap in almost every category,' and tweaktown.com frames the BiCS5 NAND upgrade as a 'huge performance boost' over the prior SN850. High-trust r/buildapc discussion is blunt: in head-to-head comparisons against the SN7100, commenters say 'the SN850X is a better SSD,' citing its DRAM-equipped design and 7,200–7,300 MB/s reads.
What reviewers liked
- Verified-tier tomshardware.com rates performance near the top of the Gen4 class
- High-trust community threads prefer it over WD's DRAM-less SN7100 for outright performance
- DRAM-equipped TLC NAND suits sustained workloads and gaming
- Over 17,000 verified-purchase reviews averaging 4.8 stars
Where it falls short
- Earlier SN850 generation had documented AM4 motherboard compatibility issues per r/hardware
- Runs warmer than WD's newer power-efficient drives; benefits from a heatsink
- Premium pricing relative to budget Gen4 alternatives
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The WD_BLACK SN850X is the other heavyweight in the Gen4 tier, and across the reviewers we read it trades blows with the 990 PRO. The verified-tier tomshardware.com review describes performance as 'near the top of the heap in almost every category,' and tweaktown.com frames the BiCS5 NAND upgrade as a 'huge performance boost' over the prior SN850. High-trust r/buildapc discussion is blunt: in head-to-head comparisons against the SN7100, commenters say 'the SN850X is a better SSD,' citing its DRAM-equipped design and 7,200–7,300 MB/s reads.
The SN850X also draws strong value sentiment from specialist sale-tracking communities, where buildapcsales regulars peg roughly $130–140 as the 'sweet spot' for a 2TB Gen4 DRAM TLC drive. With more than 17,000 verified-purchase reviews at 4.8 stars, the retail signal is robust and consistent with expert findings.
The most-cited downsides are historical and situational: r/hardware notes the original SN850 launch was 'plagued with AM4 motherboard incompatibility issues' (since addressed), and the drive runs warmer than WD's newer power-efficient designs, so a heatsink or motherboard cooling is advised in tight builds. As a raw-performance Gen4 pick it remains a top recommendation.
- Tranform Your Pc
- Insane speeds up to 7,300MB/s (1TB - 4TB models) deliver top-tier performance with ridiculously short load times for your gaming PC or workstation — for the elite experience you’ve been waiting for.
- More Room For More Games
- Capacities up to 8TB built with SANDISK TLC 3D NAND, means you get to keep more games at the ready — and get into the action even faster.
- Heatsink For The Win
- The WD_BLACK SN850X NVMe SSD 1TB and 2TB drives have an optional heatsink version that not only looks awesome but also helps your rig maintain peak performance through the most intense gaming sessions.
- Do More With Wd_black Dashboard
- The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, lets you customize your RGB lighting, and, exclusively on the SN850X SSD, enables Game Mode 2.0 to transform your gaming experience.
- Future Forward Freatures
- The WD_BLACK SN850X SSD boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM).
- Powered By Sandisk
- The WD_BLACK, WD Blue, and WD Green flash products are manufactured by Sandisk Technologies, Inc. or its affiliates and distributed under license from Western Digital Corporation.
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The sn850x is a better ssd and it appears they have it on sale for less on amazon so i'd go with that one.
The 112L BiCS5 in the SN850X is actually the newest BiCS NAND you can get, though 162L BiCS6 is set to enter mass production this year.
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“WD SN850x Revisited in 2024” · Still a good pick or go for ...
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