Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
94 Overall Score
vs
Samsung 860 PRO 256GB SATA III 2.5"
Samsung
44 Overall Score
What Buyers Say
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
No customer feedback yet
Samsung 860 PRO 256GB SATA III 2.5"
92 out of 100 low confidence 7 reviews
Users are overwhelmingly positive about this Samsung 860 Pro SSD, praising its speed, reliability, and ease of installation. It significantly improves boot times and overall system performance, especially in older laptops and desktops. The drive is also noted for its excellent performance in 4K video recording and its compatibility with various systems. A few users mention minor quirks like AHCI mode issues or the need to avoid filling the drive completely, but these do not detract from the overall satisfaction.
Pros
- Fast sequential and random speeds
- Reliable and durable
- Easy installation
- Significant performance boost
- Great for 4K recording
Cons
- AHCI mode issues on some laptops
- Avoid filling drive completely
- Price may be higher than EVO models
Performance 7
Reliability 4
Ease of installation 3
Compatibility 3
Value for money 2
4k recording 1
Scores
Console
Gaming
Workstation
Budget
Laptop
Portable
Specifications
| Western Digital WD_BLACK SN850X | Samsung 860 PRO | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | 2.5" |
| Interface | PCIe 4.0 x4 | SATA III |
| Protocol | NVMe | SATA |
| PCIe Generation | 4★ | — |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | ||
| Random Write (IOPS) | ||
| Hardware | ||
| NAND | TLC | MLC★ |
| DRAM Cache | ✓ | ✓ |
| Controller | — | MJX controller |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | 3★ | — |
| Features | ||
| Heatsink | ✓★ | — |
| Hardware Encryption | — | ✓★ |
Pros & Cons
Western Digital WD_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 feature (94th percentile)94th %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (9th percentile)9th %ile
Samsung 860 PRO 256GB SATA III 2.5"
- Strong feature (98th percentile)98th %ile
- Strong social proof (95th percentile)95th %ile
- Strong user sentiment (95th percentile)95th %ile
- Below average endurance (15th percentile)15th %ile
- Below average capacity (18th percentile)18th %ile
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 94 overall, wins 6 of 6 usage categories and 10 of 18 specs.