Western Digital Black SN850X
Western Digital
85 Overall Score
vs
SanDisk Optimus GX PRO 8100
SanDisk
91 Overall Score
Scores
Console
Gaming
Workstation
Budget
Laptop
Portable
Specifications
| Western Digital Black SN850X | SanDisk Optimus GX PRO 8100 | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 5.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4 | 5★ |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | ||
| Random Write (IOPS) | ||
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✓★ | ✗ |
| Controller | — | nCache 4.0 |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | ||
| Warranty (years) | 3 | 5★ |
| Features | ||
| Heatsink | ✓ | ✓ |
| Hardware Encryption | — | ✓★ |
Pros & Cons
Western Digital Black SN850X
- Strong capacity (98th percentile)98th %ile
- Strong random (96th percentile)96th %ile
- Strong feature (94th percentile)94th %ile
- Strong speed (86th percentile)86th %ile
- Below average social proof (7th percentile)7th %ile
SanDisk Optimus GX PRO 8100
- Strong random (99th percentile)99th %ile
- Strong speed (99th percentile)99th %ile
- Strong capacity (98th percentile)98th %ile
- Strong feature (89th percentile)89th %ile
Pricing
Western Digital Black SN850X0.068score per dollar
vs
SanDisk Optimus GX PRO 81000.044score per dollar
Western Digital Black SN850X offers 1.5x better value for money
Verdict
Winner: SanDisk Optimus GX PRO 8100
Scores 91 overall, wins 5 of 6 usage categories and 7 of 18 specs.
