Western Digital Black SN850X 2Tb NVMe tech specs

Posted on November 30, 2022 by Raymond Chen

Should you buy Black SN850X (2Tb) produced by Western Digital and more characteristics watch here.

Western Digital Black SN850X 2Tb NVMe tech specs

Western Digital Black SN850X 2Tb works on SanDisk 20-82-20035 controller. This internal SSD has Dynamic-Random Access Memory LPDDR4 for mapping data, located on the internal SSD. The Black SN850X comes equipped with 112L Bics5 flash memory. NVMe SSD besides, available in 4 Tb and 1 Tb capacities.

Performance and benchmarks

This NVMe works on PCIe M.2 4.0 x 4 interface with maximum read speeds 7300 MB/s, and maximum write speeds equals to 6600 Mbps. This model has IOPS 1200000 on reading and 1200000 on writing operations per second.

Endurance and warranty

Western Digital give 5 years warranty for this product that limited by 2400 Total Bytes Written.

Specs

Category Value
Capacity 2 Tb
Interface M.2 4.0 x 4
Controller SanDisk 20-82-20035
Memory type 112L Bics5
DRAM LPDDR4
Read speed (Mb/s) 7300
Write speed (Mb/s) 6600
Read IOPS 1200000
Write IOPS 1200000
Endurance (TBW) 2400
MTBF (million hours) n/a
Warranty (years) 5

Conclusion

Western Digital Black SN850X 2Tb use PCIe Gen4 that is twice faster than PCIe 3. The sequential write speed is 6600 Mbps, that is faster than has most of competitors. The drive can write 2400 TBW, that is pretty good compared to competitors. When everything is weighed in the balance, our site strongly recommend to purchase Western Digital Black SN850X 2Tb for your PC.

+ Pros

  • Excellent writing speed
  • PCIe 4.0
  • Capacity
  • Endurance

- Cons

  • None

Buy this or similar SSD:

Video Review

WD Black SN850X SSD Review

FAQ

The Western Digital Black SN850X has LPDDR4. DRAM in their controller help to increase I/O performance and endurance.

The Western Digital Black SN850X 2Tb due to the high density of memory chips requires installation of extra heat sink. This would decrease temperature of the controller and memory. Some motherboards or laptops already has thermal pads above or below the storage for improving productivity during heavy loads.

The Western Digital Black SN850X has maximum write speed 6600 Mbps, maximum read speed 7300 Mbps. NVMe run on SanDisk 20-82-20035 controller and M.2 4.0 x 4 interface standard. The memory type is 112L Bics5.
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