Samsung PM991 512GB PCIe 4.0 x4 NVMe M.2 2242
Samsung
46 综合评分
vs
SanDisk 4TB SSD PCIe 4.0 NVMe M.2 2280
SanDisk
92 综合评分
评分
Console
Gaming
Workstation
Laptop
Budget
Portable
规格
| Samsung PM991 | SanDisk 4TB SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2242 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 4.0 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4 | 4 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | 无数据 | |
| Sequential Write (MB/s) | 无数据 | |
| Random Read (IOPS) | 无数据 | |
| Random Write (IOPS) | 无数据 | |
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | — | ✓★ |
| Reliability | ||
| Endurance (TBW) | 无数据 | |
| MTBF (hours) | 无数据 | |
| Warranty (years) | — | 3★ |
| Features | ||
| Heatsink | — | ✓★ |
优缺点
Samsung PM991 512GB PCIe 4.0 x4 NVMe M.2 2242
- Strong speed (67th percentile)
- Below average endurance (15th percentile)15th %ile
- Below average capacity (34th percentile)
SanDisk 4TB SSD PCIe 4.0 NVMe M.2 2280
- Strong random (95th percentile)95th %ile
- Strong social proof (95th percentile)95th %ile
- Strong feature (94th percentile)94th %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (9th percentile)9th %ile
结论
胜出: SanDisk 4TB SSD
Scores 92 overall, wins 6 of 6 usage categories and 10 of 16 specs.