New
Western Digital BLACK SN850X
Capacity 8TB
Form Factor M.2 2280
Interface PCIe 4.0 x4
Read Speed 7,200 MB/s
NAND TLC
Endurance 4800 TBW
69 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong capacity (98th percentile) 98th
- Strong speed (87th percentile) 87th
- Strong endurance (83rd percentile) 83rd
Cons
- Below average user sentiment (28th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
72/100Our AI sentiment read
Based on 5 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Drive
| Capacity | 8000 |
| Form Factor | M.2 2280 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 7200 |
| Sequential Write (MB/s) | 6600 |
Hardware
| NAND | TLC |
| DRAM Cache | No |
Reliability
| Endurance (TBW) | 4800 |
| Warranty (years) | 5 |
Features
| Heatsink | No |
| Hardware Encryption | No |
vs Competition
| Spec | Western Digital BLACK SN850X | Samsung 9100 PRO | Crucial T500 | Kingston Fury Renegade SFYRDK/2000G | Seagate FireCuda 530R | SanDisk Western Digital WDS400T1X0M |
|---|---|---|---|---|---|---|
| Capacity | 8TB | 8TB | 2TB | 2TB | 4TB | 4TB |
| Form Factor | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 5.0 x4 |
| Seq Read | 7,200 MB/s | 14,800 MB/s | 7,400 MB/s | 7,300 MB/s | 7,400 MB/s | 14,900 MB/s |
| Nand Type | TLC | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | false | true | true | true | false | true |
| Endurance | 4800 TBW | 4800 TBW | 1200 TBW | 2000 TBW | 5050 TBW | 2400 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | User Sentiment | Endurance | Social Proof |
|---|---|---|---|---|---|---|---|
| Western Digital BLACK SN850X | 86.9 | 61 | 52.9 | 98.1 | 28.1 | 82.9 | 44.1 |
| Samsung 9100 PRO Compare | 99 | 99.8 | 99.7 | 98.1 | 0 | 85.8 | 95.6 |
| Crucial T500 Compare | 93.8 | 96.4 | 99 | 78.2 | 79 | 82.9 | 95.6 |
| Kingston Fury Renegade SFYRDK/2000G Compare | 92.9 | 93.7 | 93.8 | 78.2 | 66.7 | 93.8 | 95.6 |
| Seagate FireCuda 530R Compare | 92.5 | 96.3 | 52.9 | 92.6 | 64.9 | 95.4 | 88.5 |
| SanDisk Western Digital WDS400T1X0M Compare | 97.5 | 99.1 | 97.5 | 92.6 | 0 | 80.9 | 0 |
Price
Value & Pricing
We started tracking prices for this product on Nov 8, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
