Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
98 Overall Score
vs
S SHARKSPEED 512GB SSD SATA III mSATA
S SHARKSPEED
43 Overall Score
What Buyers Say
Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 2280
No customer feedback yet
S SHARKSPEED 512GB SSD SATA III mSATA
78 out of 100 medium confidence 12 reviews
Users are overwhelmingly positive about this SSD, praising its speed, easy installation, and value for money, especially as an upgrade for older laptops and desktops. Many report dramatic improvements in boot times and overall system responsiveness. However, a few negative experiences include one unit that failed immediately and another that performed slowly, suggesting some quality control variability.
Pros
- fast boot times
- easy installation
- great value for money
- noticeable performance boost
- works with older systems
Cons
- immediate failure in one unit
- slow performance in one unit
- gets warm during use
Performance speed 8
Ease of installation 6
Value for money 5
Compatibility 4
Reliability 3
Heat generation 1
Scores
Workstation
Console
Gaming
Budget
Laptop
Portable
Specifications
| Western Digital WD_BLACK SN850X | S SHARKSPEED 512GB SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | mSATA |
| 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) | No data | |
| Random Write (IOPS) | No data | |
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✓★ | — |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | 5 | 5 |
| Features | ||
| Heatsink | ✓★ | ✗ |
Pros & Cons
Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 2280
- Strong capacity (98th percentile)98th %ile
- Strong random (96th percentile)96th %ile
- Strong social proof (95th percentile)95th %ile
- Strong feature (94th percentile)94th %ile
- Below average affordability (4th percentile)4th %ile
S SHARKSPEED 512GB SSD SATA III mSATA
- Strong social proof (78th percentile)
- Strong affordability (77th percentile)
- Below average random (23rd percentile)
- Below average speed (28th percentile)
- Below average capacity (35th percentile)
Pricing
Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 2280
S SHARKSPEED 512GB SSD SATA III mSATA
No current pricing available
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 98 overall, wins 5 of 6 usage categories and 10 of 16 specs.
