Western Digital Black SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Samsung 850 EVO 120GB SATA III 2.5"
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 850 EVO 120GB SATA III 2.5"
Users generally appreciate the Samsung SSD for its performance and compatibility with both laptops and desktops, noting it works with SATA II and III. However, several mention the lack of included cables and mounting brackets, and some report cloning issues that required registry edits or a fresh install. Overall, it's seen as a solid upgrade, especially for OS drives, but buyers should plan for additional accessories and potential setup challenges.
Pros
- Fast performance
- Works with SATA II and III
- Compatible with laptops and desktops
- Good for OS drive
- Samsung Magician software
Cons
- No cables included
- No mounting bracket included
- Cloning issues
- Requires adapter for desktop
Scores
Specifications
| Western Digital Black SN850X | Samsung 850 EVO | |
|---|---|---|
| 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 | TLC |
| DRAM Cache | ✓ | ✓ |
| Controller | WD 20-82-20035-B1 | Samsung MGX 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 (95th percentile)95th %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (11th percentile)11th %ile
Samsung 850 EVO 120GB SATA III 2.5"
- Strong feature (94th percentile)94th %ile
- Strong social proof (87th percentile)87th %ile
- Strong endurance (76th percentile)
- Strong affordability (73rd percentile)
- Below average capacity (4th percentile)4th %ile
- Below average user sentiment (29th percentile)
- Below average speed (31st percentile)
Verdict
Scores 100 overall, wins 6 of 6 usage categories and 7 of 18 specs.