Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
100 Overall Score
vs
Samsung T7 Shield 4TB Portable USB 3.2 Gen 2
Samsung
71 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 T7 Shield 4TB Portable USB 3.2 Gen 2
No customer feedback yet
Scores
Portable
Laptop
Gaming
Workstation
Console
Budget
Specifications
| Western Digital Black SN850X | Samsung T7 Shield | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | External |
| Interface | PCIe 4.0 x4 | USB 3.2 Gen 2 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4★ | — |
| External | ✗ | ✓ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | No data | |
| Random Write (IOPS) | No data | |
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✓ | ✓ |
| Controller | WD 20-82-20035-B1 | — |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| 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 (96th percentile)96th %ile
- Strong social proof (95th percentile)95th %ile
- Strong user sentiment (95th percentile)95th %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (10th percentile)10th %ile
Samsung T7 Shield 4TB Portable USB 3.2 Gen 2
- Strong social proof (95th percentile)95th %ile
- Strong feature (94th percentile)94th %ile
- Strong capacity (93rd percentile)93rd %ile
- Strong random (81st percentile)81st %ile
- Below average affordability (5th percentile)5th %ile
Pricing
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 22800.100score per dollar
vs
Samsung T7 Shield 4TB Portable USB 3.2 Gen 20.046score per dollar
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280 offers 2.2x better value for money
Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Samsung T7 Shield 4TB Portable USB 3.2 Gen 2
Verdict
Winner: Western Digital Black SN850X
Scores 100 overall, wins 5 of 6 usage categories and 8 of 18 specs.
