SanDisk WD_BLACK SN8100
Samsung PM991a
What Buyers Say
SanDisk WD_BLACK SN8100
The WD Black SN8100 is overwhelmingly praised for its blazing Gen5 speeds, with users reporting double the performance of previous Gen4 drives and boot times of just a few seconds. Reviewers highlight excellent heat management, easy installation, and reliability, though many note the high price as a significant drawback. Overall, it's seen as a top-tier upgrade for those with compatible hardware and budget.
Pros
- Blazing Gen5 speeds
- Excellent heat management
- Easy installation
- Reliable performance
- Great for gaming
Cons
- High price
- Requires Gen5 motherboard
- Pricey for many
Samsung PM991a
No customer feedback yet
Scores
Specifications
| SanDisk WD_BLACK SN8100 | Samsung PM991a | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2230 |
| Interface | PCIe 5.0 x4 | PCIe 3.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 5★ | 3 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | ||
| Random Write (IOPS) | ||
| Hardware | ||
| NAND | TLC | TLC |
| Reliability | ||
| Endurance (TBW) | No data | |
| Warranty (years) | 5★ | — |
Pros & Cons
SanDisk WD_BLACK SN8100
- Strong speed (100th percentile)100th %ile
- Strong random (99th percentile)99th %ile
- Strong social proof (96th percentile)96th %ile
- Strong endurance (94th percentile)94th %ile
Samsung PM991a
- Strong random (83rd percentile)83rd %ile
- Strong social proof (80th percentile)80th %ile
- Below average endurance (14th percentile)14th %ile
Verdict
Scores 90 overall, wins 6 of 6 usage categories and 8 of 13 specs.