Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
94 Overall Score
vs
Samsung 128GB SSD SATA III 2.5"
Samsung
50 Overall Score
Scores
Console
Gaming
Workstation
Budget
Laptop
Portable
Specifications
| Western Digital WD_BLACK SN850X | Samsung 128GB SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | 2.5" |
| Interface | PCIe 4.0 x4 | SATA III |
| Protocol | NVMe | SATA |
| PCIe Generation | 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 MEX Controller |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | ||
| Warranty (years) | 3 | 10★ |
| 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 128GB SSD SATA III 2.5"
- Strong endurance (94th percentile)94th %ile
- Strong feature (94th percentile)94th %ile
- Strong affordability (80th percentile)80th %ile
- Below average capacity (7th percentile)7th %ile
- Below average speed (24th percentile)
Pricing
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 22800.144score per dollar
vs
Samsung 128GB SSD SATA III 2.5"0.621score per dollar
Samsung 128GB SSD SATA III 2.5" offers 4.3x better value for money
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 94 overall, wins 6 of 6 usage categories and 8 of 18 specs.
