Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
100 Overall Score
vs
Samsung 990 PRO 1TB PCIe 4.0 x4 NVMe M.2 2280
Samsung
67 Overall Score
What Buyers Say
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
92 out of 100 medium confidence 17 reviews
The WD Black SN850X is highly praised for its blazing speed, reliability, and value, often compared favorably to pricier alternatives like Samsung and Solidigm. Users report excellent performance in gaming (especially PS5) and general use, with a few concerns about potential issues mitigated by firmware updates. Overall, it's seen as a top-tier NVMe drive, especially when on sale.
Pros
- Blazing fast speeds
- Excellent value for money
- Reliable high-capacity storage
- Great for PS5
- Easy installation
Cons
- Potential firmware issues
- No heatsink included
- Pricey when not on sale
Speed 6
Value for money 4
Reliability 4
Ps5 compatibility 3
Firmware concerns 2
Installation 2
Samsung 990 PRO 1TB PCIe 4.0 x4 NVMe M.2 2280
No customer feedback yet
Scores
Laptop
Workstation
Gaming
Console
Budget
Portable
Specifications
| Western Digital Black SN850X | Samsung 990 PRO | |
|---|---|---|
| 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 | WD 20-82-20035-B1 | Samsung |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | 5★ | — |
| Features | ||
| Heatsink | ✗ | ✓★ |
| Hardware Encryption | ✗ | — |
Pros & Cons
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- Strong random (95th percentile)95th %ile
- Strong social proof (95th percentile)95th %ile
- Strong user sentiment (94th percentile)94th %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (11th percentile)11th %ile
Samsung 990 PRO 1TB PCIe 4.0 x4 NVMe M.2 2280
- Strong random (97th percentile)97th %ile
- Strong feature (94th percentile)94th %ile
- Strong speed (93rd percentile)93rd %ile
- Below average endurance (15th percentile)15th %ile
- Below average affordability (28th percentile)
- Below average social proof (29th percentile)
Pricing
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 22800.152score per dollar
vs
Samsung 990 PRO 1TB PCIe 4.0 x4 NVMe M.2 22800.205score per dollar
Samsung 990 PRO 1TB PCIe 4.0 x4 NVMe M.2 2280 offers 1.3x better value for money
Verdict
Winner: Western Digital Black SN850X
Scores 100 overall, wins 6 of 6 usage categories and 4 of 18 specs.
