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WD BLACK SN850X NVMe 4000GB

Price and performance details for the WD BLACK SN850X NVMe 4000GB can be found below. This is made using thousands of PerformanceTest benchmark results and is updated daily.

  • The first graph shows the relative performance of the Hard Drive compared to the 10 other common Hard Drives in terms of PassMark Disk Rating.
  • The 2nd graph shows the value for money, in terms of the Disk Rating per dollar.

WD BLACK SN850X NVMe 4000GB

Description:  WDS400T2X0E

Drive Size:  3.6 TB

Other names:  WD_BLACK SN850X 4000GB, NVMe WD_BLACK SN850X 4000GB

Drive First Benchmarked: 2022-09-18

Drive Rating/$Price: 80.58

Overall Rank:  2

Last Price Change:  $699.99 USD (2022-08-22)

Average Drive Rating
56403
Samples: 69

Disk Test Suite Average Results for WD BLACK SN850X NVMe 4000GB

Sequential Read5,902 MBytes/Sec
Sequential Write4,986 MBytes/Sec
Random Seek Read Write (IOPS 32KQD20)4,877 MBytes/Sec
IOPS 4KQD1108 MBytes/Sec
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Pricing History


Drive Rating Relative to Top 10 Common Drives
As of 23rd of March 2023 - Higher results represent better performance
Drive Average Disk Rating
WD BLACK SN850X NVMe 4000GB
56,403
WD BLACK SN850 1TB
42,078
WD BLACK SN850 2TB
41,693
Samsung SSD 980 PRO 2TB
40,596
Samsung SSD 980 PRO 1TB
38,427
WD BLACK SN850 500GB
37,177
Samsung SSD PM9A1 NVMe 1TB
33,936
Samsung SSD 980 PRO 500GB
33,428
Samsung SSD PM9A1 NVMe 512GB
30,738
Corsair Force MP600 1TB
29,456
Last 5 Baselines for WD BLACK SN850X NVMe 4000GB
Most recent listed first
Baseline Disk Rating
BL1774303 - Mar 20 2023
62509
BL1773586 - Mar 19 2023
58118
BL1772860 - Mar 19 2023
53577
BL1772371 - Mar 18 2023
50543
BL1772330 - Mar 18 2023
65677