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Western Digital WD Black SN8100 1TB
Western Digital WD Black SN8100 2TB

Western Digital WD Black SN8100 1TB Western Digital WD Black SN8100 2TB

Common Features

  • ✓ Both products have M2 form factor.
  • ✓ Both products feature DRAM cache.
  • ✓ Both products are NVMe SSDs.
  • ✓ Both products use NVMe version 2.
  • ✓ Both products are powered by the Silicon Motion SM2508 controller.
  • ✓ Both products have 8 controller channels.
  • ✓ Both products use TLC storage type.
  • ✓ Both products support PCI Express version 5.

Main Differences

  • • Random read speed is 1600000 IOPS on Western Digital WD Black SN8100 1TB and 2300000 IOPS on Western Digital WD Black SN8100 2TB.
  • • Sequential write speed is 11000 MB/s on Western Digital WD Black SN8100 1TB and 14000 MB/s on Western Digital WD Black SN8100 2TB.
  • • Random write speed is 2400000 IOPS on Western Digital WD Black SN8100 1TB and 2300000 IOPS on Western Digital WD Black SN8100 2TB.
  • • Internal storage is 1000GB on Western Digital WD Black SN8100 1TB and 2000GB on Western Digital WD Black SN8100 2TB.
  • • Terabytes Written (TBW) is 600 on Western Digital WD Black SN8100 1TB and 1200 on Western Digital WD Black SN8100 2TB.
Specs Comparison
Western Digital WD Black SN8100 1TB

Western Digital WD Black SN8100 1TB

Western Digital WD Black SN8100 2TB

Western Digital WD Black SN8100 2TB

Read speed:
sequential read speed 14900 MB/s 14900 MB/s
random read speed 1600000 IOPS 2300000 IOPS

The read speed comparison between the Western Digital WD Black SN8100 1TB and the 2TB version shows similarities and differences in sequential and random read speeds.

Both models offer the same sequential read speed of 14900 MB/s, which means they perform equally well in terms of sequential data access. However, when it comes to random read speeds, the 1TB model provides a random read speed of 1,600,000 IOPS, while the 2TB model has a higher random read speed of 2,300,000 IOPS, giving it an advantage in handling random access tasks.

In summary, while both drives have identical sequential read speeds, the 2TB model stands out with its superior random read speed.

Write speed:
sequential write speed 11000 MB/s 14000 MB/s
random write speed 2400000 IOPS 2300000 IOPS

The write speed specifications for the Western Digital WD Black SN8100 1TB and 2TB models show both similarities and differences in sequential and random write speeds.

For sequential write speeds, the 1TB model reaches 11,000 MB/s, while the 2TB model performs faster at 14,000 MB/s. This shows a noticeable difference in their sequential write capabilities. As for random write speeds, the 1TB model offers 2,400,000 IOPS, whereas the 2TB version has a slightly lower random write speed of 2,300,000 IOPS.

In summary, the 2TB model excels in sequential write speed, while the 1TB model has a slight edge in random write speed.

General info:
type M2 M2
SSD cache DRAM cache DRAM cache
Is an NVMe SSD ✓ ✓
NVMe version 2 2
internal storage 1000GB 2000GB
release date May 2025 May 2025
controller Silicon Motion SM2508 Silicon Motion SM2508
SSD storage type TLC TLC
PCI Express (PCIe) version 5 5
Controller channels 8 8
Terabytes Written (TBW) 600 1200
MTBF 1.8million hours 1.8million hours
warranty period 5 years 5 years
Has an integrated heatsink ✕ ✕
has RGB lighting ✕ ✕

When comparing the general specifications of the Western Digital WD Black SN8100 1TB and 2TB models, both share several key features but differ in a few important areas.

Both models use the M.2 form factor, feature DRAM cache, and are NVMe SSDs with version 2. They also share the same controller, the Silicon Motion SM2508, and the same number of PCIe 5.0 lanes with 8 controller channels. Additionally, both drives use TLC NAND storage and have an MTBF rating of 1.8 million hours, along with a 5-year warranty. The main differences lie in the storage capacity and endurance: the 1TB model offers 1000GB of storage and a TBW of 600, while the 2TB model has 2000GB of storage and a higher TBW of 1200.

Neither model comes with an integrated heatsink or RGB lighting, so in terms of additional features, they are identical. Overall, the 2TB version stands out with its larger storage and higher endurance rating, while the 1TB version offers the same core features with less capacity and lower TBW.

Comparison Summary

This is a specification comparison between Western Digital WD Black SN8100 1TB and Western Digital WD Black SN8100 2TB. Both products have a M2 form factor, DRAM cache, and are NVMe SSDs powered by the Silicon Motion SM2508 controller. Key differences include random read speed at 1600000 IOPS for the 1TB and 2300000 IOPS for the 2TB, sequential write speed at 11000 MB/s for the 1TB and 14000 MB/s for the 2TB, and internal storage at 1000GB for the 1TB and 2000GB for the 2TB. Additionally, the Terabytes Written (TBW) is 600 for the 1TB and 1200 for the 2TB.