Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
94 Overall Score
vs
SanDisk WD_BLACK SN8100 4TB PCIe 5.0 x4 NVMe M.2 2280
SanDisk
90 Overall Score
What Buyers Say
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
No customer feedback yet
SanDisk WD_BLACK SN8100 4TB PCIe 5.0 x4 NVMe M.2 2280
88 out of 100 medium confidence 12 reviews
The WD Black SN8100 is overwhelmingly praised for its blazing Gen5 speeds, with users reporting double the performance of previous Gen4 drives and boot times of just a few seconds. Reviewers highlight excellent heat management, easy installation, and reliability, though many note the high price as a significant drawback. Overall, it's seen as a top-tier upgrade for those with compatible hardware and budget.
Pros
- Blazing Gen5 speeds
- Excellent heat management
- Easy installation
- Reliable performance
- Great for gaming
Cons
- High price
- Requires Gen5 motherboard
- Pricey for many
Performance speed 12
Heat management 5
Value for money 6
Ease of installation 4
Reliability 4
Compatibility 3
Scores
Gaming
Console
Workstation
Laptop
Budget
Portable
Specifications
| Western Digital WD_BLACK SN850X | SanDisk WD_BLACK SN8100 | |
|---|---|---|
| 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 | 5★ |
| Features | ||
| Heatsink | ✓★ | — |
Pros & Cons
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- Strong random (96th percentile)96th %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
SanDisk WD_BLACK SN8100 4TB PCIe 5.0 x4 NVMe M.2 2280
- Strong speed (100th percentile)100th %ile
- Strong random (99th percentile)99th %ile
- Strong social proof (95th percentile)95th %ile
- Strong endurance (95th percentile)95th %ile
- Below average affordability (8th percentile)8th %ile
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 94 overall, wins 5 of 6 usage categories and 3 of 16 specs.