Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Samsung 990 1TB PCIe 4.0 x4 NVMe M.2 2280
What Buyers Say
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
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
Samsung 990 1TB PCIe 4.0 x4 NVMe M.2 2280
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
Scores
Specifications
| Western Digital 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 | WD 20-82-20035-B1 | In-House Controller |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | ||
| Warranty (years) | 5★ | 3 |
| 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 1TB PCIe 4.0 x4 NVMe M.2 2280
- Strong social proof (100th percentile)100th %ile
- Strong random (92nd percentile)92nd %ile
- Strong speed (85th percentile)85th %ile
- Strong feature (79th percentile)
Verdict
Scores 100 overall, wins 5 of 6 usage categories and 8 of 18 specs.