SanDisk Optimus GX PRO 850X 1TB PCIe 4.0 x4 NVMe M.2 2280
SanDisk
82 Overall Score
vs
KingSpec 128GB SSD PCIe 3.0 x4 NVMe M.2 2242
KingSpec
42 Overall Score
What Buyers Say
SanDisk Optimus GX PRO 850X 1TB PCIe 4.0 x4 NVMe M.2 2280
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
KingSpec 128GB SSD PCIe 3.0 x4 NVMe M.2 2242
72 out of 100 low confidence 9 reviews
Most users are satisfied with this SSD, especially for upgrades in Lenovo Legion Go, Raspberry Pi, and other mini PCs, citing good speed and value. However, a few critical reviews mention early failures and compatibility issues, which temper the overall positive sentiment.
Pros
- Good speed
- Great value for money
- Works well in Lenovo Legion Go
- Compatible with Raspberry Pi 5
- Good form factor (2242)
Cons
- Early failure risk
- Compatibility issues with some devices
- Runs hot under load
- Double-sided design may cause fit issues
Performance 5
Value for money 4
Compatibility 4
Reliability 3
Heat 2
Form factor 2
Scores
Laptop
Budget
Workstation
Gaming
Console
Portable
Specifications
| SanDisk Optimus GX PRO 850X | KingSpec 128GB SSD | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | M.2 2242 |
| Interface | PCIe 4.0 x4 | PCIe 3.0 x4 |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4★ | 3 |
| External | ✗ | ✗ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | No data | |
| Random Read (IOPS) | No data | |
| Random Write (IOPS) | No data | |
| Hardware | ||
| NAND | TLC | TLC |
| DRAM Cache | ✗ | — |
| Controller | SanDisk nCache 4.0 | — |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | ||
| Warranty (years) | 5 | 5 |
| Features | ||
| Heatsink | ✗ | — |
| Hardware Encryption | ✓★ | — |
Pros & Cons
SanDisk Optimus GX PRO 850X 1TB PCIe 4.0 x4 NVMe M.2 2280
- Strong user sentiment (94th percentile)94th %ile
- Strong random (93rd percentile)93rd %ile
- Strong endurance (88th percentile)88th %ile
- Strong speed (85th percentile)85th %ile
KingSpec 128GB SSD PCIe 3.0 x4 NVMe M.2 2242
- Strong affordability (94th percentile)94th %ile
- Below average capacity (7th percentile)7th %ile
- Below average user sentiment (29th percentile)
Pricing
SanDisk Optimus GX PRO 850X 1TB PCIe 4.0 x4 NVMe M.2 22800.219score per dollar
vs
KingSpec 128GB SSD PCIe 3.0 x4 NVMe M.2 22420.604score per dollar
KingSpec 128GB SSD PCIe 3.0 x4 NVMe M.2 2242 offers 2.8x better value for money
Verdict
Winner: SanDisk Optimus GX PRO 850X
Scores 82 overall, wins 6 of 6 usage categories and 9 of 18 specs.
