WD Black SN850X

Name: WD Black SN850X
Brand: Western Digital
SKU: DBD-10041

9.3/10 our score

The SN850X is the 990 Pro's equal for gaming and often wins on price.

InterfacePCIe 4.0 x4

Category: StorageRanked #2 of 41 in Storage In our guide: Best NVMe SSDs in 2026: Gaming, Creators and Budget Builds

9.3Our score

Our verdict

The SN850X is the 990 Pro's equal for gaming and often wins on price.

Ranked #2 in Storage · 4 things we like · 2 to know before buying

Read the full guide

The SN850X is the 990 Pro's equal for gaming and often wins on price. The two trade blows in benchmarks and neither one loads a game faster in a way you can perceive. If you want a single 4TB or 8TB drive for a huge game library, WD offers larger capacities than Samsung does.

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Product information

5 specifications

Interface	PCIe 4.0 x4
NAND	TLC
DRAM	Yes

Capacities	1TB, 2TB, 4TB, 8TB
Heatsink	Optional version

Pros & cons

What we like

Matches the 990 Pro in real-world load times
Game Mode 2.0 in the WD Dashboard software
Available up to 8TB
Frequently on sale

What could be better

Runs a little warmer than the Samsung
Dashboard software is heavier than it needs to be

Featured in our guides

All storage guides

Best NVMe SSDs in 2026: Gaming, Creators and Budget BuildsThe five NVMe drives we actually put in builds, and why most people should not pay for PCIe 5.0 yet.

WD Black SN850X

The SN850X is the 990 Pro's equal for gaming and often wins on price.

Product information

Pros & cons

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