Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 2242
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 256GB PCIe 3.0 x4 NVMe M.2 2242
- 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
Pricing
Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 22420.258score per dollar
vs
SanDisk SSD0.199score per dollar
Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 2242 offers 1.3x better value for money
Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 2242
SanDisk SSD
Verdict
Winner: SanDisk SSD
Scores 89 overall, wins 6 of 6 usage categories and 11 of 17 specs.
