Samsung PM991a 1TB PCIe 3.0 x4 NVMe M.2 2230
Samsung
59 Overall Score
vs
Corsair 2TB SSD PCIe 5.0 x4 NVMe M.2 2280
Corsair
84 Overall Score
Scores
Console
Gaming
Workstation
Laptop
Budget
Portable
Specifications
| Samsung PM991a | Corsair 2TB SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2230 | 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) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | ||
| Random Write (IOPS) | ||
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | — | ✗ |
| Controller | — | PS5031-E31T |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | — | 5★ |
| Features | ||
| Heatsink | — | ✓★ |
| Hardware Encryption | — | ✓★ |
Pros & Cons
Samsung PM991a 1TB PCIe 3.0 x4 NVMe M.2 2230
- Strong random (84th percentile)84th %ile
- Strong social proof (77th percentile)
- Below average endurance (15th percentile)15th %ile
Corsair 2TB SSD PCIe 5.0 x4 NVMe M.2 2280
- Strong random (97th percentile)97th %ile
- Strong speed (95th percentile)95th %ile
- Strong feature (89th percentile)89th %ile
- Strong endurance (87th percentile)87th %ile
- Below average affordability (20th percentile)20th %ile
Pricing
Samsung PM991a 1TB PCIe 3.0 x4 NVMe M.2 22300.235score per dollar
vs
Corsair 2TB SSD PCIe 5.0 x4 NVMe M.2 22800.183score per dollar
Samsung PM991a 1TB PCIe 3.0 x4 NVMe M.2 2230 offers 1.3x better value for money
Verdict
Winner: Corsair 2TB SSD
Scores 84 overall, wins 5 of 6 usage categories and 11 of 18 specs.
