Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Samsung 970 PRO 512GB PCIe 3.0 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 970 PRO 512GB PCIe 3.0 x4 NVMe M.2 2280
Users are overwhelmingly positive about this Samsung 970 Pro NVMe M.2 drive, praising its exceptional speed and performance compared to SATA SSDs. It works out of the box without formatting and is considered a great value at its price point. Some users noted that boot times were unchanged, but overall it's highly recommended.
Pros
- Exceptional speed
- Works out of the box
- Great value for money
- High quality build
- Easy installation
Cons
- Boot times unchanged
- Tracking number not provided
Scores
Specifications
| Western Digital Black SN850X | Samsung 970 PRO | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 3.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4★ | 3 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | ||
| Random Write (IOPS) | ||
| Hardware | ||
| NAND | TLC | MLC★ |
| DRAM Cache | ✓ | ✓ |
| Controller | WD 20-82-20035-B1 | Samsung Phoenix 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 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 970 PRO 512GB PCIe 3.0 x4 NVMe M.2 2280
- Strong feature (97th percentile)97th %ile
- Strong endurance (95th percentile)95th %ile
- Strong user sentiment (94th percentile)94th %ile
- Strong random (85th percentile)85th %ile
- Below average affordability (23rd percentile)
- Below average capacity (34th percentile)
Verdict
Scores 100 overall, wins 6 of 6 usage categories and 8 of 18 specs.