New
Western Digital SN740
Capacity 256GB
Form Factor M.2 2280
Interface PCIe 4.0 x4
Read Speed 5,150 MB/s
40 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong random (90th percentile) 90th
- Strong speed (71st percentile) 71st
Cons
- Below average feature (14th percentile)
- Below average capacity (17th percentile)
- Below average social proof (29th percentile)
- Below average endurance (31st percentile)
The proof
Performance
Specifications
Full Specifications
Drive
| Capacity | 256 |
| Form Factor | M.2 2280 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 5150 |
| Sequential Write (MB/s) | 4000 |
| Random Read (IOPS) | 740000 |
| Random Write (IOPS) | 800000 |
Reliability
| MTBF (hours) | 1750000 |
Features
| Heatsink | No |
vs Competition
| Spec | Western Digital SN740 | Crucial T500 CT1000T500SSD5 | Samsung 990 EVO | SK Hynix Platinum P41 | Kingston NV3 SNV3SM3/2T0 | KingSpec OneBoom X400-1TB 2280 |
|---|---|---|---|---|---|---|
| Capacity | 256GB | 1TB | 2TB | 2TB | 2TB | 1TB |
| Form Factor | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2230 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 4.0 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Seq Read | 5,150 MB/s | 7,300 MB/s | 5,000 MB/s | 7,000 MB/s | 6,000 MB/s | 7,400 MB/s |
| Nand Type | - | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | - | true | false | true | - | false |
| Endurance | - | 600 TBW | 1200 TBW | 1200 TBW | 640 TBW | 1800 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Social Proof |
|---|---|---|---|---|---|---|
| Western Digital SN740 | 70.8 | 90.2 | 14.4 | 17.2 | 31 | 29.3 |
| Crucial T500 CT1000T500SSD5 Compare | 90.4 | 96.1 | 99 | 54.8 | 83 | 96.3 |
| Samsung 990 EVO Compare | 70.4 | 89.5 | 78.5 | 78.6 | 83 | 99.7 |
| SK Hynix Platinum P41 Compare | 82.5 | 96.4 | 93.7 | 78.6 | 86 | 56.6 |
| Kingston NV3 SNV3SM3/2T0 Compare | 75.8 | 60.5 | 53.4 | 78.6 | 68.7 | 90.1 |
| KingSpec OneBoom X400-1TB 2280 Compare | 89.9 | 60.5 | 78.5 | 54.8 | 96.7 | 65.9 |
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.
