Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
95 Overall Score
vs
Samsung 9100 PRO 1TB PCIe 5.0 x4 NVMe M.2 2280
Samsung
81 Overall Score
What Buyers Say
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
No customer feedback yet
Samsung 9100 PRO 1TB PCIe 5.0 x4 NVMe M.2 2280
72 out of 100 medium confidence 11 reviews
The Samsung 9100 Pro is generally praised for its blazing-fast Gen5 speeds, with several users noting a noticeable improvement over Gen4 drives like the 990 Pro. However, one verified buyer reported a complete failure after less than two weeks, which is a significant concern. Most reviewers recommend it for high-end builds, especially with a heatsink, but caution that the speed boost may not be worth it for everyone.
Pros
- Blazing fast Gen5 speeds
- Noticeable improvement over Gen4
- Works with PCIe 4.0 boards
- Compatible with PS5 (with heatsink)
- High-quality build
Cons
- Reported failure within 2 weeks
- Requires heatsink for best performance
- Speed difference not noticeable for everyday tasks
- Not worth upgrading from Gen4 for some
Performance speed 6
Reliability 1
Compatibility 3
Value for money 3
Cooling requirements 1
Build quality 2
Scores
Laptop
Budget
Gaming
Workstation
Console
Portable
Specifications
| Western Digital Black SN850X | Samsung 9100 PRO | |
|---|---|---|
| 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 | WD 20-82-20035-B1 | Samsung in-house Controller |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | ||
| Warranty (years) | 5 | 5 |
| Features | ||
| Heatsink | ✗ | ✓★ |
| Hardware Encryption | ✗ | ✓★ |
Pros & Cons
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- 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
Samsung 9100 PRO 1TB PCIe 5.0 x4 NVMe M.2 2280
- Strong feature (100th percentile)100th %ile
- Strong random (99th percentile)99th %ile
- Strong speed (99th percentile)99th %ile
- Strong endurance (85th percentile)85th %ile
- Below average user sentiment (28th percentile)
- Below average social proof (33rd percentile)
Verdict
Winner: Western Digital Black SN850X
Scores 95 overall, wins 6 of 6 usage categories and 3 of 18 specs.