新品
Samsung PM991 256GB PCIe 3.0 x4 NVMe M.2 2242
The 256GB PM991 uses a compact M.2 2242 form factor with PCIe 3.0 x4 NVMe, fitting tight spaces in slim laptops while delivering solid sequential speeds. Its budget score of 76.6/100 makes it a cost-effective upgrade for older systems, though portable performance is weak at 9.5/100. Best for users needing a small-capacity, low-cost boot drive in a laptop or mini PC with a 2242 slot.
Capacity 256GB
Form Factor M.2 2242
Interface PCIe 3.0 x4
34 综合评分
暂无零售商最新价格
概览
优缺点
优点
- Strong affordability (83rd percentile) 83rd
- Strong social proof (77th percentile) 77th
缺点
- Below average endurance (15th percentile)
- Below average feature (15th percentile)
- 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 2242 |
| Interface | PCIe 3.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 3 |
| External | No |
竞品对比
| Spec | Samsung PM991 | Western Digital Black SN850X | Kingston FURY Renegade G5 SFYR2S/4T0 | SanDisk WD_BLACK WDS800T2XHE | Micron T710 CT4000T710SSD5 | Crucial T700 |
|---|---|---|---|---|---|---|
| Capacity | 256GB | 4TB | 4TB | 8TB | 4TB | 2TB |
| Form Factor | M.2 2242 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| Interface | PCIe 3.0 x4 | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 4.0 | PCIe 5.0 | PCIe 5.0 x4 |
| Seq Read | - | 7,300 MB/s | 14,800 MB/s | 7,300 MB/s | 14,500 MB/s | 12,400 MB/s |
| Nand Type | - | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | - | true | true | true | false | true |
| Endurance | - | 2400 TBW | 4000 TBW | 4800 TBW | 2400 TBW | 1200 TBW |
| Compare | Compare | Compare | Compare | Compare |
| 产品 | Speed | Random | Feature | Capacity | Endurance | 用户口碑 | Affordability |
|---|---|---|---|---|---|---|---|
| Samsung PM991 | 52.2 | 61.7 | 14.7 | 17.8 | 14.7 | 77.4 | 82.5 |
| Western Digital Black SN850X Compare | 89 | 95.6 | 89.5 | 92.6 | 88.1 | 95.3 | 10.2 |
| Kingston FURY Renegade G5 SFYR2S/4T0 Compare | 99.5 | 99 | 90.9 | 92.6 | 93.6 | 87.1 | 6.3 |
| SanDisk WD_BLACK WDS800T2XHE Compare | 89 | 96.3 | 89.5 | 98.1 | 88.1 | 95.3 | 3.7 |
| Micron T710 CT4000T710SSD5 Compare | 99.1 | 99.2 | 89.5 | 92.6 | 86 | 77.4 | 11.2 |
| Crucial T700 Compare | 96.6 | 97.6 | 97.5 | 78.5 | 83 | 77.4 | 23.8 |
使用场景评分
- 总体34.1
- Budget71.6
- 游戏28.6
- Laptop36.2
- Console13.7
- Portable8.2
- Workstation29.5
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。
