Western Digital WD_BLACK SN850X
Western Digital
95 Overall Score
vs
Samsung 9100 PRO
Samsung
81 Overall Score
What Buyers Say
Western Digital WD_BLACK SN850X
No customer feedback yet
Samsung 9100 PRO
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 WD_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 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
Samsung 9100 PRO
- 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 WD_BLACK SN850X
Scores 95 overall, wins 6 of 6 usage categories and 3 of 18 specs.