Western Digital Black SN850X
Western Digital
85 Overall Score
vs
SanDisk Optimus GX PRO 8100
SanDisk
87 Overall Score
Scores
Workstation
Gaming
Laptop
Console
Budget
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 | ✓★ | — |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | No data | |
| Warranty (years) | 3★ | — |
| 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 speed (100th percentile)100th %ile
- Strong random (99th percentile)99th %ile
- Strong capacity (93rd percentile)93rd %ile
- Strong endurance (91st percentile)91st %ile
Pricing
Western Digital Black SN850X0.068score per dollar
vs
SanDisk Optimus GX PRO 81000.092score per dollar
SanDisk Optimus GX PRO 8100 offers 1.4x better value for money
Verdict
Tie
Both products are closely matched - Western Digital Black SN850X wins 5 specs while SanDisk Optimus GX PRO 8100 wins 6.
