Western Digital WD Black SN850X 2TB Benchmarks

Bottom line: how fast is the WD Black SN850X 2TB?

In CrystalDiskMark RND4K Q32T16 Read it scores 743,828–998,688 IOPS, across two published results (SSD-Tester, KitGuru).

Every figure above is a row in the tables below, and each row links out to the review or public benchmark database the number was taken from. SpecPicks aggregates published measurements; it does not report first-party benchmark runs.

The WD Black SN850X 2TB is a SSD released in 2022 from Western Digital. Data on this page draws on 32 synthetic benchmark results (top 10 shown), compiled from KitGuru, SSD-Tester, StorageReview, TechPowerUp; each table row links to its source. Read this page when shopping the WD Black SN850X 2TB, comparing it against other SSDs in your build, or sizing it for a specific workload (synthetic benchmark scores).

Synthetic Benchmarks

Higher is better. Bars are scaled within each benchmark family (multi-thread, single-thread, etc.) so you can compare like-with-like at a glance.

Synthetic benchmark scores for the WD Black SN850X 2TB — higher is better. Each row links to the public database the number was taken from. A benchmark listed more than once is separate published results, shown as published rather than averaged.
Benchmark	Score	Source
CrystalDiskMark RND4K Q32T16 Read	998,688 IOPS	SSD-Tester 2023-11-27
CrystalDiskMark RND4K Q32T16 Write	761,944 IOPS	SSD-Tester 2023-11-27
CrystalDiskMark RND4K Q32T16 Read	743,828 IOPS	KitGuru 2022-11-02
CrystalDiskMark 4K Q32T1 Read IOPS (Peak Perf profile)	726,685 IOPS	KitGuru 2022-11-02
CrystalDiskMark RND4K Q32T16 Write	602,168 IOPS	KitGuru 2022-11-02
CrystalDiskMark 4K Q32T1 Write IOPS (Peak Perf profile)	582,276 IOPS	KitGuru 2022-11-02
4K Random Write Peak (VDBench)	187,000 IOPS	StorageReview 2022-08-08
CrystalDiskMark SEQ1M Q8T1 Read	7,377 MB/s	KitGuru 2022-11-02
CrystalDiskMark SEQ1M Q8T1 Read	7,360 MB/s	SSD-Tester 2023-11-27
CrystalDiskMark 3.0 Seq Read	7,250 MB/s	TechPowerUp 2023-04-12

Full Specifications

Tbw	1200
Interface	PCIe 4.0 x4
Capacity	2000 GB
Seq read mbs	7300
Seq write mbs	6600

WD Black SN850X 2TB — Frequently Asked Questions

What is the WD Black SN850X 2TB best used for?

WD Black SN850X 2TB is an SSD. See the specs table on this page for full details.

When was the WD Black SN850X 2TB released?

WD Black SN850X 2TB was released in 2022.

Where do the WD Black SN850X 2TB benchmark numbers come from?

Each benchmark row on this page names its source (public benchmark databases such as TechPowerUp, PassMark, Geekbench and Cinebench, and community reports such as r/LocalLLaMA threads) and links to it, so every number can be checked against the original.

How does the WD Black SN850X 2TB compare to its peers?

Compare WD Black SN850X 2TB side by side against other SSDs with the SpecPicks Compare tool; the spec table shows the architectural differences between generations.

Where can I buy the WD Black SN850X 2TB?

SpecPicks has no verified listing of the WD Black SN850X 2TB on file yet; the Amazon search link at the top of this page shows its current offers. SpecPicks earns a small affiliate commission on qualifying purchases.