Samsung PM991
Samsung
38 Overall Score
vs
SanDisk SSD
SanDisk
89 Overall Score
Scores
Laptop
Workstation
Gaming
Budget
Console
Portable
Specifications
| Samsung PM991 | SanDisk SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2242 | M.2 2280 |
| Interface | PCIe 3.0 x4 | PCIe 5.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 3 | 5★ |
| 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) | — | 1★ |
| Features | ||
| Heatsink | — | ✗ |
| Hardware Encryption | — | ✗ |
Pros & Cons
Samsung PM991
- Strong social proof (79th percentile)
- Below average feature (14th percentile)14th %ile
- Below average endurance (14th percentile)14th %ile
- Below average capacity (18th percentile)18th %ile
SanDisk SSD
- Strong random (99th percentile)99th %ile
- Strong endurance (99th percentile)99th %ile
- Strong speed (98th percentile)98th %ile
- Strong social proof (96th percentile)96th %ile
Verdict
Winner: SanDisk SSD
Scores 89 overall, wins 6 of 6 usage categories and 11 of 17 specs.