Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
94 Overall Score
vs
Samsung 990 EVO Plus 2TB PCIe 4.0 x4 NVMe M.2 2280
Samsung
90 Overall Score
Scores
Laptop
Console
Gaming
Workstation
Budget
Portable
Specifications
| Western Digital WD_BLACK SN850X | Samsung 990 EVO Plus | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4 | 4 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | ||
| Random Write (IOPS) | ||
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✓★ | ✗ |
| Controller | — | Samsung in-house Controller |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | ||
| Warranty (years) | 3 | 5★ |
| Features | ||
| Heatsink | ✓★ | ✗ |
| Hardware Encryption | — | ✓★ |
Pros & Cons
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- Strong random (96th percentile)96th %ile
- Strong social proof (95th percentile)95th %ile
- Strong feature (94th percentile)94th %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (9th percentile)9th %ile
Samsung 990 EVO Plus 2TB PCIe 4.0 x4 NVMe M.2 2280
- Strong random (96th percentile)96th %ile
- Strong social proof (95th percentile)95th %ile
- Strong endurance (86th percentile)86th %ile
- Strong speed (85th percentile)85th %ile
- Below average affordability (24th percentile)
Pricing
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 22800.144score per dollar
vs
Samsung 990 EVO Plus 2TB PCIe 4.0 x4 NVMe M.2 22800.253score per dollar
Samsung 990 EVO Plus 2TB PCIe 4.0 x4 NVMe M.2 2280 offers 1.8x better value for money
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 94 overall, wins 3 of 6 usage categories and 8 of 18 specs.
