Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 2242
Samsung
38 Overall Score
vs
SanDisk 1TB SSD PCIe 4.0 x4 NVMe M.2 2280
SanDisk
77 Overall Score
Scores
Budget
Laptop
Gaming
Console
Workstation
Portable
Specifications
| Samsung PM991 | SanDisk 1TB SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2242 | M.2 2280 |
| Interface | PCIe 3.0 x4 | PCIe 4.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 3 | 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 | — | QLC★ |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | — | 5★ |
| Features | ||
| Hardware Encryption | — | ✗ |
Pros & Cons
Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 2242
- Strong affordability (82nd percentile)82nd %ile
- Strong social proof (78th percentile)
- Below average endurance (15th percentile)15th %ile
- Below average feature (15th percentile)15th %ile
- Below average capacity (18th percentile)18th %ile
SanDisk 1TB SSD PCIe 4.0 x4 NVMe M.2 2280
- Strong random (96th percentile)96th %ile
- Strong endurance (95th percentile)95th %ile
- Strong social proof (87th percentile)87th %ile
- Strong speed (87th percentile)87th %ile
- Below average feature (15th percentile)15th %ile
Pricing
Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 22420.600score per dollar
vs
SanDisk 1TB SSD PCIe 4.0 x4 NVMe M.2 22800.406score per dollar
Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 2242 offers 1.5x better value for money
Verdict
Winner: SanDisk 1TB SSD
Scores 77 overall, wins 6 of 6 usage categories and 10 of 15 specs.
