Samsung PM991 512GB PCIe 4.0 x4 NVMe M.2 2242
Samsung
42 Overall Score
vs
SanDisk 4TB SSD PCIe 4.0 NVMe M.2 2280
SanDisk
92 Overall Score
Scores
Console
Gaming
Workstation
Laptop
Budget
Portable
Specifications
| Samsung PM991 | SanDisk 4TB SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2242 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 4.0 |
| 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 | — | ✓★ |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | — | 3★ |
| Features | ||
| Heatsink | — | ✓★ |
Pros & Cons
Samsung PM991 512GB PCIe 4.0 x4 NVMe M.2 2242
- Strong speed (67th percentile)
- Below average affordability (0th percentile)0th %ile
- Below average endurance (15th percentile)15th %ile
- Below average capacity (34th percentile)
SanDisk 4TB SSD PCIe 4.0 NVMe M.2 2280
- Strong random (95th percentile)95th %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
Verdict
Winner: SanDisk 4TB SSD
Scores 92 overall, wins 6 of 6 usage categories and 10 of 16 specs.