New
Western Digital SN850
Capacity 500GB
Form Factor M.2 2280
Interface PCIe 4.0 x4
Read Speed 7,000 MB/s
NAND TLC
DRAM Cache Yes
Endurance 300 TBW
65 Overall Score
Price $350
Snapshot
Pros & Cons
Pros
- Strong feature (94th percentile) 94th
- Strong random (93rd percentile) 93rd
- Strong speed (78th percentile) 78th
- Strong endurance (71st percentile) 71st
Cons
- Below average social proof (23rd percentile)
- Below average capacity (26th percentile)
The proof
Performance
Specifications
Full Specifications
Drive
| Capacity | 500 |
| Form Factor | M.2 2280 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 7000 |
| Sequential Write (MB/s) | 5300 |
| Random Read (IOPS) | 1000000 |
| Random Write (IOPS) | 1000000 |
Hardware
| NAND | TLC |
| DRAM Cache | Yes |
Reliability
| Endurance (TBW) | 300 |
| MTBF (hours) | 1750000 |
Features
| Heatsink | Yes |
vs Competition
| Spec | Western Digital SN850 | Samsung 9100 Pro MZ-VAP4T0CW | Crucial T710 | Kingston Fury Renegade SFYRDK/2000G | Seagate FireCuda 530R | SanDisk Western Digital WDS400T1X0M |
|---|---|---|---|---|---|---|
| Capacity | 500GB | 4TB | 4TB | 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 5.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 5.0 x4 |
| Seq Read | 7,000 MB/s | 14,800 MB/s | 14,500 MB/s | 7,300 MB/s | 7,400 MB/s | 14,900 MB/s |
| Nand Type | TLC | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | true | true | false | true | false | true |
| Endurance | 300 TBW | 2400 TBW | 2400 TBW | 2000 TBW | 5050 TBW | 2400 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Social Proof |
|---|---|---|---|---|---|---|
| Western Digital SN850 | 78.3 | 93.4 | 93.8 | 25.9 | 70.5 | 23.2 |
| Samsung 9100 Pro MZ-VAP4T0CW Compare | 99 | 99.7 | 99.8 | 92.8 | 86 | 99.5 |
| Crucial T710 Compare | 98.7 | 98.7 | 85.6 | 92.8 | 86 | 79.7 |
| Kingston Fury Renegade SFYRDK/2000G Compare | 92.7 | 93.4 | 93.8 | 78.4 | 94 | 95.6 |
| Seagate FireCuda 530R Compare | 92.2 | 96.2 | 53.3 | 92.8 | 95.6 | 88.5 |
| SanDisk Western Digital WDS400T1X0M Compare | 97.4 | 99 | 97.4 | 92.8 | 81 | 0 |
Price
Value & Pricing
From $350
Amazon 1 offer From $350
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.
