New
Samsung PM991 512GB PCIe 4.0 x4 NVMe M.2 2242
Capacity 512GB
Form Factor M.2 2242
Interface PCIe 4.0 x4
NAND TLC
49 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong speed (68th percentile) 68th
Cons
- Below average endurance (15th percentile)
- Below average capacity (35th percentile)
The proof
Performance
Specifications
Full Specifications
Drive
| Capacity | 512 |
| Form Factor | M.2 2242 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Hardware
| NAND | TLC |
vs Competition
| Spec | Samsung PM991 | Western Digital Black SN850X | Kingston FURY Renegade G5 SFYR2S/4T0 | Crucial T500 | SanDisk WD_BLACK SN8100 | Seagate FireCuda 530R |
|---|---|---|---|---|---|---|
| Capacity | 512GB | 4TB | 4TB | 2TB | 8TB | 4TB |
| Form Factor | M.2 2242 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 4.0 x4 |
| Seq Read | - | 7,300 MB/s | 14,800 MB/s | 7,400 MB/s | 14,900 MB/s | 7,400 MB/s |
| Nand Type | TLC | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | - | true | true | true | true | false |
| Endurance | - | 2400 TBW | 4000 TBW | 1200 TBW | 4800 TBW | 5050 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Affordability |
|---|---|---|---|---|---|---|
| Samsung PM991 | 67.8 | 61.7 | 53.8 | 34.6 | 14.7 | 63.1 |
| Western Digital Black SN850X Compare | 88.9 | 95.7 | 89.4 | 92.6 | 88.2 | 10.4 |
| Kingston FURY Renegade G5 SFYR2S/4T0 Compare | 99.4 | 98.9 | 90.8 | 92.6 | 93.5 | 6.3 |
| Crucial T500 Compare | 94 | 96.9 | 99 | 78.5 | 83 | 19.6 |
| SanDisk WD_BLACK SN8100 Compare | 99 | 99.3 | 97.6 | 98.2 | 80.9 | 3.2 |
| Seagate FireCuda 530R Compare | 92.9 | 96.8 | 53.8 | 92.6 | 95.7 | 6.6 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
