新品
Samsung PM9A1 256GB PCIe 4.0 x4 NVMe M.2 2280
Capacity 256GB
Form Factor M.2 2280
Interface PCIe 4.0 x4
Read Speed 6,400 MB/s
NAND TLC
54 综合评分
暂无零售商最新价格
概览
优缺点
优点
- Strong random (88th percentile) 88th
- Strong affordability (83rd percentile) 83rd
- Strong speed (75th percentile) 75th
缺点
- Below average capacity (18th percentile)
实测数据
性能表现
规格参数
完整规格参数
Drive
| Capacity | 256 |
| Form Factor | M.2 2280 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 6400 |
| Sequential Write (MB/s) | 2700 |
| Random Read (IOPS) | 500000 |
| Random Write (IOPS) | 600000 |
Hardware
| NAND | TLC |
Reliability
| Warranty (years) | 2 |
竞品对比
| Spec | Samsung PM9A1 | Western Digital Black SN850X | Kingston FURY Renegade G5 SFYR2S/4T0 | Crucial T500 | SanDisk WD_BLACK SN8100 | Seagate FireCuda 530R |
|---|---|---|---|---|---|---|
| Capacity | 256GB | 4TB | 4TB | 2TB | 8TB | 4TB |
| Form Factor | M.2 2280 | 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 | 6,400 MB/s | 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 |
| 产品 | Speed | Random | Feature | Capacity | Endurance | 用户口碑 | Affordability |
|---|---|---|---|---|---|---|---|
| Samsung PM9A1 | 75.2 | 87.5 | 53.8 | 17.6 | 35.8 | 39.9 | 83.1 |
| Western Digital Black SN850X Compare | 88.9 | 95.7 | 89.4 | 92.6 | 88.2 | 95.3 | 10.5 |
| Kingston FURY Renegade G5 SFYR2S/4T0 Compare | 99.4 | 98.9 | 90.8 | 92.6 | 93.6 | 87 | 6.3 |
| Crucial T500 Compare | 94 | 96.9 | 99 | 78.5 | 83.1 | 95.3 | 19.6 |
| SanDisk WD_BLACK SN8100 Compare | 98.9 | 99.3 | 97.6 | 98.2 | 81 | 44.5 | 3.3 |
| Seagate FireCuda 530R Compare | 92.9 | 96.8 | 53.8 | 92.6 | 95.7 | 77.2 | 6.6 |
使用场景评分
完整评测即将发布。上方的规格、评分、价格和图表始终保持最新。
