Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
95 Overall Score
vs
Lexar NM620 0843367123148 256GB PCIe 3.0 x4 NVMe M.2 2280
Lexar
49 Overall Score
Scores
Laptop
Budget
Gaming
Workstation
Console
Portable
Specifications
| Western Digital Black SN850X | Lexar NM620 0843367123148 | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 3.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4★ | 3 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | No data | |
| Random Write (IOPS) | No data | |
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✓★ | — |
| Controller | WD 20-82-20035-B1 | — |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | 5 | 5 |
| Features | ||
| Heatsink | ✗ | — |
| Hardware Encryption | ✗ | — |
Pros & Cons
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- Strong social proof (100th percentile)100th %ile
- Strong random (95th percentile)95th %ile
- Strong capacity (93rd percentile)93rd %ile
- Strong feature (89th percentile)89th %ile
Lexar NM620 0843367123148 256GB PCIe 3.0 x4 NVMe M.2 2280
- Strong social proof (70th percentile)
- Below average capacity (18th percentile)18th %ile
Verdict
Winner: Western Digital Black SN850X
Scores 95 overall, wins 6 of 6 usage categories and 9 of 18 specs.