SanDisk WD_BLACK SN8100 4TB PCIe 5.0 x4 NVMe M.2 2280
Western Digital WD_BLACK SN770 2TB PCIe 4.0 x4 NVMe M.2 2280
What Buyers Say
SanDisk WD_BLACK SN8100 4TB PCIe 5.0 x4 NVMe M.2 2280
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
Western Digital WD_BLACK SN770 2TB PCIe 4.0 x4 NVMe M.2 2280
The WD_BLACK SN770 2TB offers excellent read speeds and is praised for gaming and secondary storage, but several users report serious reliability issues, including boot loops, BIOS failures, and partition corruption, especially when used as a Windows OS drive. While some recommend it for its performance, others advise against it for primary use and suggest alternatives like the SN850X. The lack of DRAM and potential thermal throttling are also noted concerns.
Pros
- Excellent read speeds
- Good for gaming and secondary storage
- Works with PS5
- No heatsink needed for normal use
- 5-year warranty
Cons
- Boot loops and BIOS failures
- Partition corruption
- Not reliable as OS drive
- Lack of DRAM cache
- Thermal throttling under heavy load
Scores
Specifications
| SanDisk WD_BLACK SN8100 | Western Digital WD_BLACK SN770 | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2280 |
| Interface | PCIe 5.0 x4 | PCIe 4.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 5★ | 4 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | ||
| Random Read (IOPS) | ||
| Random Write (IOPS) | ||
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | — | ✗ |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | No data | |
| Warranty (years) | 5 | 5 |
| Features | ||
| Heatsink | — | ✗ |
Pros & Cons
SanDisk WD_BLACK SN8100 4TB PCIe 5.0 x4 NVMe M.2 2280
- Strong speed (100th percentile)100th %ile
- Strong random (99th percentile)99th %ile
- Strong social proof (95th percentile)95th %ile
- Strong endurance (95th percentile)95th %ile
- Below average affordability (8th percentile)8th %ile
Western Digital WD_BLACK SN770 2TB PCIe 4.0 x4 NVMe M.2 2280
- Strong social proof (95th percentile)95th %ile
- Strong random (90th percentile)90th %ile
- Strong endurance (88th percentile)88th %ile
- Strong capacity (78th percentile)
- Below average user sentiment (6th percentile)6th %ile
- Below average affordability (21st percentile)
Pricing
SanDisk WD_BLACK SN8100 4TB PCIe 5.0 x4 NVMe M.2 2280
No current pricing available
Western Digital WD_BLACK SN770 2TB PCIe 4.0 x4 NVMe M.2 2280
Verdict
Scores 90 overall, wins 3 of 6 usage categories and 7 of 16 specs.
