Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
94 Overall Score
vs
Samsung 990 1TB PCIe 4.0 x4 NVMe M.2 2280
Samsung
83 Overall Score
What Buyers Say
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
No customer feedback yet
Samsung 990 1TB PCIe 4.0 x4 NVMe M.2 2280
82 out of 100 medium confidence 10 reviews
Users generally praise the Samsung 990 SSD for its speed, reliability, and stability, noting fast file transfers and game load times. Some mention it runs hot under load, and a few find it pricey or not as fast as advertised for gaming. Overall, it's seen as a solid, long-lasting drive for various uses.
Pros
- Fast transfer speeds
- Reliable and stable
- Good for gaming
- Handles heat well
- Easy to install
Cons
- Runs hot under load
- Pricey compared to alternatives
- Gaming speed not as advertised
Speed 6
Reliability 5
Heat management 4
Value for money 3
Gaming performance 3
Compatibility 3
Scores
Console
Gaming
Workstation
Budget
Laptop
Portable
Specifications
| Western Digital WD_BLACK SN850X | Samsung 990 | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4 | 4 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | ||
| Random Write (IOPS) | ||
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✓★ | ✗ |
| Controller | — | In-House Controller |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | ||
| Warranty (years) | 3 | 3 |
| Features | ||
| Heatsink | ✓★ | ✗ |
| Hardware Encryption | — | ✓★ |
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
Samsung 990 1TB PCIe 4.0 x4 NVMe M.2 2280
- Strong social proof (100th percentile)100th %ile
- Strong random (93rd percentile)93rd %ile
- Strong speed (85th percentile)85th %ile
- Strong feature (79th percentile)
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 94 overall, wins 4 of 6 usage categories and 8 of 18 specs.