Over 1,000,000 Hard Drives Benchmarked
Price and performance details for the WD BLACK SN850X 4TB can be found below. This is made using thousands of PerformanceTest benchmark results and is updated daily.
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: 73.36
Overall Rank: 282
Last Price Change: $699.99 USD (2022-08-22)
| Sequential Read | 6,645 MBytes/Sec |
|---|---|
| Sequential Write | 5,756 MBytes/Sec |
| Random Seek Read Write (IOPS 32KQD20) | 4,402 MBytes/Sec |
| IOPS 4KQD1 | 100 MBytes/Sec |
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| Drive | Average Disk Rating | |
|---|---|---|
| Samsung 9100 PRO 2TB SSD | 85,853 | |
| WD BLACK SN850X 2000GB | 51,429 | |
| WD BLACK SN850X 4TB | 51,353 | |
| Samsung 990 Pro PM9F1 4TB SSD | 51,045 | |
| Samsung 990 Pro PM9F1 2TB SSD | 49,608 | |
| KINGSTON FURY Renegade 2TB SSD | 49,218 | |
| KINGSTON KC3000 2TB | 49,125 | |
| Samsung 990 Pro PM9F1 1TB SSD | 48,426 | |
| WD BLACK SN850X 1TB | 46,756 | |
| Kingston FURY Renegade 1TB SSD | 44,414 | |
| PassMark Software © 2008-2026 |
| Baseline | Disk Rating | |
|---|---|---|
| BL3268794 - Feb 06 2026 | 50578 | |
| BL3266844 - Feb 06 2026 | 54809 | |
| BL3266312 - Feb 05 2026 | 51709 | |
| BL3264186 - Feb 05 2026 | 51895 | |
| BL3263018 - Feb 04 2026 | 48075 | |
| PassMark Software © 2008-2026 |