Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
98 Overall Score
vs
SanDisk Optimus GX 7100M 2TB PCIe 4.0 x4 NVMe M.2 2230
SanDisk
76 Overall Score
Scores
Workstation
Gaming
Console
Laptop
Budget
Portable
Specifications
| Western Digital WD_BLACK SN850X | SanDisk Optimus GX 7100M | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2230 |
| 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) | ||
| Warranty (years) | 5★ | — |
| Features | ||
| Heatsink | ✓★ | — |
| Hardware Encryption | — | ✗ |
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
SanDisk Optimus GX 7100M 2TB PCIe 4.0 x4 NVMe M.2 2230
- Strong random (96th percentile)96th %ile
- Strong speed (92nd percentile)92nd %ile
- Strong capacity (79th percentile)
- Strong endurance (71st percentile)
- Below average social proof (18th percentile)18th %ile
- Below average affordability (20th percentile)20th %ile
Pricing
Western Digital WD_BLACK SN850X 8TB PCIe 4.0 x4 NVMe M.2 22800.046score per dollar
vs
SanDisk Optimus GX 7100M 2TB PCIe 4.0 x4 NVMe M.2 22300.155score per dollar
SanDisk Optimus GX 7100M 2TB PCIe 4.0 x4 NVMe M.2 2230 offers 3.4x better value for money
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 98 overall, wins 5 of 6 usage categories and 6 of 17 specs.
