Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
SanDisk Extreme Portable 2TB USB 3.2 Gen 2
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
SanDisk Extreme Portable 2TB USB 3.2 Gen 2
The SanDisk Extreme Portable SSD is widely praised for its fast transfer speeds, compact size, and rugged build, making it a favorite among photographers and videographers. However, one verified reviewer reported disconnects during sustained heavy writes, which is a concern for long backup jobs. Overall, it's seen as a reliable and convenient portable storage solution, though a bit pricey.
Pros
- Fast transfer speeds
- Compact and lightweight
- Rugged build with water/dust resistance
- Easy USB-C connectivity
- Reliable for everyday use
Cons
- Disconnects during sustained heavy writes
- Gets warm during long transfers
- Pricey compared to traditional drives
Scores
Specifications
| Western Digital Black SN850X | SanDisk Extreme Portable | |
|---|---|---|
| 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 | 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 (12th percentile)12th %ile
SanDisk Extreme Portable 2TB USB 3.2 Gen 2
- Strong feature (79th percentile)
- Strong capacity (78th percentile)
- Strong social proof (77th percentile)
- Below average affordability (32nd percentile)
Pricing
SanDisk Extreme Portable 2TB USB 3.2 Gen 2 offers 1.3x better value for money
Verdict
Scores 100 overall, wins 5 of 6 usage categories and 9 of 18 specs.
