SanDisk Optimus GX PRO 850X
SanDisk
82 Overall Score
vs
Western Digital Black SN850X
Western Digital
94 Overall Score
What Buyers Say
SanDisk Optimus GX PRO 850X
92 out of 100 low confidence 6 reviews
Users are highly satisfied with this SSD, praising its fast performance and reliability. One reviewer highlighted the speed for backups, transferring 1GB in about 3 seconds. The brand name is trusted, and all reviews are positive, with no complaints mentioned.
Pros
- Fast data transfer
- Reliable brand
- Good for backups
- Solid performance
Performance 4
Reliability 3
Brand trust 2
Backup speed 1
Western Digital Black SN850X
No customer feedback yet
Scores
Laptop
Budget
Gaming
Workstation
Console
Portable
Specifications
| SanDisk Optimus GX PRO 850X | Western Digital 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 | ✗ | ✓★ |
| Controller | SanDisk nCache 4.0 | WD 20-82-20035-B1 |
| Reliability | ||
| Endurance (TBW) | ||
| MTBF (hours) | ||
| Warranty (years) | 5 | 5 |
| Features | ||
| Heatsink | ✗ | ✗ |
| Hardware Encryption | ✓★ | ✗ |
Pros & Cons
SanDisk Optimus GX PRO 850X
- Strong user sentiment (94th percentile)94th %ile
- Strong random (92nd percentile)92nd %ile
- Strong endurance (88th percentile)88th %ile
- Strong speed (84th percentile)84th %ile
Western Digital Black SN850X
- Strong social proof (97th percentile)97th %ile
- Strong random (95th percentile)95th %ile
- Strong capacity (93rd percentile)93rd %ile
- Strong feature (89th percentile)89th %ile
Pricing
SanDisk Optimus GX PRO 850X0.364score per dollar
vs
Western Digital Black SN850X0.144score per dollar
SanDisk Optimus GX PRO 850X offers 2.5x better value for money
Verdict
Winner: Western Digital Black SN850X
Scores 94 overall, wins 6 of 6 usage categories and 5 of 18 specs.
