Western Digital Black SN770 250Gb NVMe SSD technical review
What memory type installed in Western Digital Black SN770 250Gb and further specs watch in our article.
Black SN770 (250Gb) produced by Western Digital is powered by SanDisk controller. The Black SN770 comes equipped with TLC memory. NVMe SSD besides, available in 3 capacities, including 1 Tb, 500 Gb and 2 Tb.
Performance and benchmarks
This NVMe works on PCIe M.2 4.0 x 4 bus with read speeds 5150 MB/s, and sequential write speeds equals to 4900 MB/s. This model has input/output performance 650000 on reading and 800000 on writing operations.
Endurance and warranty
Western Digital provide 5-year warranty that limited by endurance 1200 TBW.
Specs
| Category | Value |
| Capacity | 250 Gb |
| Interface | M.2 4.0 x 4 |
| Controller | SanDisk |
| Memory type | TLC |
| DRAM | n/a |
| Read speed (Mb/s) | 5150 |
| Write speed (Mb/s) | 4900 |
| Read IOPS | 650000 |
| Write IOPS | 800000 |
| Endurance (TBW) | 1200 |
| MTBF (million hours) | n/a |
| Warranty (years) | 5 |
Conclusion
Western Digital Black SN770 250Gb use PCIe 4.0 that is twice faster than PCIe 3.0. The maximum write speed is 4900 Mbps, that is okay for this interface. The SSD provide possibility to write 1200 TBW, that is simply marvellous compared to nearest competitors. When everything is weighed in the balance, our editor recommend to purchase Western Digital Black SN770 250Gb for your PC.
+ Pros
- Good writing speed
- PCIe 4.0
- Endurance
- Cons
- Capacity
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