Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
98 Overall Score
vs
Samsung PM9A3 7.68TB PCIe 4.0 x4 NVMe 2.5"
Samsung
49 Overall Score
Scores
Workstation
Gaming
Console
Laptop
Budget
Portable
Specifications
| Western Digital WD_BLACK SN850X | Samsung PM9A3 | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | 2.5" |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4 | 4 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | No data | |
| Sequential Write (MB/s) | No data | |
| Random Read (IOPS) | No data | |
| Random Write (IOPS) | No data | |
| Hardware | ||
| NAND | TLC★ | — |
| DRAM Cache | ✓★ | — |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | 5★ | — |
| Features | ||
| Heatsink | ✓★ | — |
Pros & Cons
Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 2280
- Strong capacity (98th percentile)98th %ile
- Strong random (96th percentile)96th %ile
- Strong social proof (95th percentile)95th %ile
- Strong feature (94th percentile)94th %ile
- Below average affordability (4th percentile)4th %ile
Samsung PM9A3 7.68TB PCIe 4.0 x4 NVMe 2.5"
- Strong capacity (97th percentile)97th %ile
- Strong speed (68th percentile)
- Below average affordability (1st percentile)1st %ile
- Below average endurance (15th percentile)15th %ile
- Below average feature (15th percentile)15th %ile
- Below average social proof (17th percentile)17th %ile
Pricing
Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 22800.078score per dollar
vs
Samsung PM9A3 7.68TB PCIe 4.0 x4 NVMe 2.5"0.012score per dollar
Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 2280 offers 6.5x better value for money
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 98 overall, wins 6 of 6 usage categories and 11 of 16 specs.
