Western Digital Black SN770 250Gb NVMe SSD technical review

Posted on February 05, 2024 by Raymond Chen

What memory type installed in Western Digital Black SN770 250Gb and further specs watch in our article.

Western Digital Black SN770 250Gb NVMe SSD technical review

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


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

🛒 Buy this or similar SSD Storage:

Samsung 980 Pro 2 Tb

-57% $165
List Price: $379.99

Buy on Amazon

✨ Video Review

WD Black SN770 SSD Review – Mid Range Gaming Greatness?

⁉️ FAQ

The Black SN770 250Gb is DRAMless storage or data about it is not known. DRAM makes storage faster, but more expensive.

The Black SN770 250Gb due to the low density of memory chips may run with no additional heat sinks. Some motherboards or laptops designed with thermal pads above or below the drive to improve performance during heavy loads.

The Western Digital Black SN770 has write speed 4900 Mb per second, read speed 5150 Mb per second. Storage run on SanDisk controller and M.2 4.0 x 4 interface standard. The NAND memory type is TLC.
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