Western Digital WD_BLACK SN850X
Western Digital
95 Overall Score
vs
ADATA SSD
ADATA
32 Overall Score
Scores
Laptop
Budget
Gaming
Workstation
Console
Portable
Specifications
| Western Digital WD_BLACK SN850X | ADATA SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | 2.5" |
| Interface | PCIe 4.0 x4 | SATA III |
| Protocol | NVMe | SATA |
| PCIe Generation | 4★ | — |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | No data | |
| Random Write (IOPS) | No data | |
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✓★ | ✗ |
| Controller | WD 20-82-20035-B1 | — |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | ||
| Warranty (years) | 5★ | 3 |
| Features | ||
| Heatsink | ✗ | — |
| Hardware Encryption | ✗ | — |
Pros & Cons
Western Digital WD_BLACK SN850X
- Strong social proof (100th percentile)100th %ile
- Strong random (95th percentile)95th %ile
- Strong capacity (93rd percentile)93rd %ile
- Strong feature (89th percentile)89th %ile
ADATA SSD
- Below average speed (16th percentile)16th %ile
- Below average capacity (17th percentile)17th %ile
- Below average random (22nd percentile)
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 95 overall, wins 6 of 6 usage categories and 9 of 18 specs.