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SanDisk · PCIe 4.0 · 8000 GB

WD_BLACK 8TB SN850X NVMe

M.2 2280 · TLC NAND · DDR4-3200

Performance
78
Perf / price
8
Capacity value
62
Amazon
$1520
WD_BLACK 8TB SN850X NVMe
View WD_BLACK 8TB SN850X NVMe Gallery in high resolution
$1520
Available on Amazon Updated Aug 29, 2026 Prime FBA
Performance78.1
Performance / price7.7
Capacity value61.7
$1520 on Amazon Add this SSD to a build Compare this SSD SSD table

Written analysis

WD_BLACK 8TB SN850X NVMe at a glance

The WD_BLACK 8TB SN850X NVMe is a 8000 GB M.2 2280 SSD using PCIe 4.0 x4, NVMe 1.4. The controller is WD 20-82-000292-B2 Triton Mp16+ B. Flash type is TLC 162-layer. Cache is listed as DDR4-3200.

Rated sequential throughput is 7200 MB/s read and 6600 MB/s write. Random throughput is 1200K read IOPS and 1200K write IOPS. The calculated specification score is 78.1.

Best fit: Mainstream desktop and laptop upgrades balancing speed, capacity, and cost.

Endurance and thermals

Rated endurance is 4800 TBW, or approximately 600 TBW per TB of capacity. The listed warranty is 5 years.

Current value

At $1520, the drive costs $190.00 per TB. Performance / price is 7.7 and capacity value is 61.7. Compare these values with nearby drives below; interface generation and headline speed alone do not determine value.

Drive data

Full specifications

Interface, flash, controller, cache, throughput, endurance, power, warranty, and value in one technical sheet.

General

Manufacturer
SanDisk
SSD
WD_BLACK 8TB SN850X NVMe
Part number
WDS800T2X0E
Model
WDS800T2X0E
Capacity
8000 GB
Form factor
M.2 2280
Launch price
—
Amazon price
$1520
Amazon availability
Available
Price updated
Aug 29, 2026

Performance

Sequential read
7200 MB/s
Sequential write
6600 MB/s
Random read
1200K IOPS
Random write
1200K IOPS

Value

Amazon price
$1520
Price / TB
$190.00
Performance / price
7.7
Capacity value
61.7

Hardware & cache

Interface
PCIe 4.0 x4, NVMe 1.4
Interface generation
PCIe 4.0
Controller
WD 20-82-000292-B2 Triton Mp16+ B
NAND
TLC 162-layer
Process
16.0
Cache type
DDR4-3200
DRAM
DDR4-3200
DRAM capacity
8196 MB
DRAM speed
3200 MT/s
SLC cache
2350 GB Dynamic + 96 GB Static

Durability & power

Endurance
4800 TBW
Endurance / TB
600 TBW
Warranty
5 years
Idle power
—
Active power
—

Additional information

Also listed as
8TB SN850X NVMe
Color
Black

Amazon

Price history

Nearby performance

Similar SSDs

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

TRANSFORM YOUR PC. Get top-tier performance and ridiculously short load times for your gaming PC or workstation with insane speeds up to 7,200 MB/s (2)

MORE ROOM, MORE GAMES. Capacities up to 8TB (1) built with Western Digital TLC 3D NAND, means you get to download more games — and stop deleting your favorites.

HEATSINK FOR THE WIN. All capacities have an optional heatsink version to help maintain peak performance through your most intense gaming sessions.

DO MORE WITH DASHBOARD. The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, lets you customize your RGB lighting (heatsink versions only), and can automatically detect games to turn on Game Mode 2.0.

FUTURE-FORWARD FEATURES. The WD_BLACK SN850X 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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