394HB 4TB SSD PCIe 4.0 x4 NVMe M.2
394HB
92 Overall Score
vs
Samsung PM991 512GB PCIe 4.0 x4 NVMe M.2 2242
Samsung
49 Overall Score
Scores
Laptop
Gaming
Console
Workstation
Budget
Portable
Specifications
| 394HB 4TB SSD | Samsung PM991 | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 | M.2 2242 |
| 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 | TLC |
| DRAM Cache | ✗ | — |
| Controller | E18 | — |
| Reliability | ||
| Endurance (TBW) | 50★ | — |
| MTBF (hours) | No data | |
| Warranty (years) | 5★ | — |
| Features | ||
| Heatsink | ✗ | — |
Pros & Cons
394HB 4TB SSD PCIe 4.0 x4 NVMe M.2
- Strong random (97th percentile)97th %ile
- Strong endurance (96th percentile)96th %ile
- Strong speed (93rd percentile)93rd %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (7th percentile)7th %ile
Samsung PM991 512GB PCIe 4.0 x4 NVMe M.2 2242
- Strong speed (68th percentile)
- Below average endurance (15th percentile)15th %ile
- Below average capacity (35th percentile)
Verdict
Winner: 394HB 4TB SSD
Scores 92 overall, wins 6 of 6 usage categories and 8 of 17 specs.