WESTERN DIGITAL SN8100 1TB NVMe SSD review (2026)

Posted on July 11, 2026 by Raymond Chen

How fast is the SN8100 (1TB) produced by WESTERN DIGITAL and further details read below in our article.

WESTERN DIGITAL SN8100 1TB NVMe SSD review

Controller & Memory

SN8100 (1TB) produced by WESTERN DIGITAL works on Silicon Mortion SM2508. The drive write a data location map on DRAM Yes to run a games without delays. The SN8100 comes equipped with Kioxia 3D TLC flash memory. This NVMe also available in 3 capacities, including 4 TB, 8 TB and 2 TB volume sizes.

SN8100 Performance & Benchmarks

Drive use PCIe M.2 4.0 x 4 bus with write speeds equals to 14000 MB/s, and maximum read speeds 14900 Mbps. SN8100 has input/output performance 2300000 on reading and 2400000 on writing operations per second.

Performance comparison

WESTERN DIGITAL SN8100 1 TB vs M.2 4.0 x 4 peers

Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 4.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.

  • WESTERN DIGITAL SN8100 1 TB (this drive): 14,900 MB/s read, 14,000 MB/s write
  • Patriot Viper PV593 1 TB: 14,500 MB/s read, 14,000 MB/s write
  • Patriot Viper PV593 2 TB: 14,500 MB/s read, 14,000 MB/s write
  • Patriot Viper PV593 4 TB: 14,500 MB/s read, 14,000 MB/s write
  • Patriot Viper PV573 2 TB: 14,000 MB/s read, 12,000 MB/s write

WESTERN DIGITAL SN8100 vs Competitors

See how the SN8100 stacks up against other M.2 4.0 x 4 drives in our database:

Endurance, TBW & Warranty

WESTERN DIGITAL give 4 years of warranty that limited by 2.3 Total Bytes Written. As well it has 2000000 million hours mean time between failure.

WESTERN DIGITAL SN8100 1 TB Specifications

Category Value
Capacity [?] 1 TB
Interface [?] M.2 4.0 x 4
Controller [?] Silicon Mortion SM2508
Memory type [?] Kioxia 3D TLC
DRAM [?] Yes
Read speed (MB/s) [?] 14900
Write speed (MB/s) [?] 14000
Read IOPS [?] 2300000
Write IOPS [?] 2400000
Endurance (TBW) [?] 2.3
MTBF (million hours) [?] 2000000
Warranty (years) [?] 4

Verdict: Is the SN8100 Worth It in 2026?

WESTERN DIGITAL SN8100 1TB use PCIe Gen4 that is significantly faster than PCIe Gen3. The sequential write speed is 14000 Mbps, that is faster than has other rivals. The drive provide possibility to write 2.3 TBW, that is not very much in comparison with rivals. When everything is weighed in the balance, our site strongly recommend to purchase WESTERN DIGITAL SN8100 1TB for your PC.

+ Pros

  • Excellent writing speed
  • PCIe 4.0
  • Capacity

- Cons

  • Writing speed

4 / 5 · 32 votes

Buy this or similar SSD Storage:

Samsung 980 Pro 2 TB

-57% $165
List Price: $379.99

Buy on Amazon

Video Review

Destroying The Competition - WD Black SN8100 SSD Review

Frequently Asked Questions

The WESTERN DIGITAL SN8100 has Yes. Dynamic random-access memory (DRAM) in their controller help to improve endurance and input/output performance.

The WESTERN DIGITAL SN8100 due to the low density of memory chips can function with no additional cooling systems. Some motherboards or laptops from the factory has thermal pads above or below the SSD to enhance performance during times of heavy loads.

The WESTERN DIGITAL SN8100 has maximum write speed 14000 Mb per second, read speed 14900 Mb/s. It operate on Silicon Mortion SM2508 controller and M.2 4.0 x 4 interface standard. The NAND flash memory type is Kioxia 3D TLC.

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