SanDisk Optimus GX PRO 850X 4TB PCIe 4.0 x4 NVMe M.2 2280
SanDisk
89 Overall Score
vs
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
99 Overall Score
Scores
Budget
Console
Gaming
Workstation
Laptop
Portable
Specifications
| SanDisk Optimus GX PRO 850X | Western Digital WD_BLACK SN850X | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4 | 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★ | 3 |
| Features | ||
| Heatsink | — | ✓★ |
| Hardware Encryption | ✓★ | — |
Pros & Cons
SanDisk Optimus GX PRO 850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- Strong random (96th percentile)96th %ile
- Strong endurance (94th percentile)94th %ile
- Strong feature (94th percentile)94th %ile
- Strong capacity (93rd percentile)93rd %ile
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- Strong social proof (96th percentile)96th %ile
- Strong random (95th percentile)95th %ile
- Strong user sentiment (95th percentile)95th %ile
- Strong feature (94th percentile)94th %ile
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 99 overall, wins 5 of 6 usage categories and 2 of 17 specs.