TurboVS
Samsung 9100 Pro 8TB
Western Digital WD Black SN8100 2TB

Samsung 9100 Pro 8TB Western Digital WD Black SN8100 2TB

Common Features

  • ✓ Both products are M.2 type SSDs.
  • ✓ Both products have DRAM cache.
  • ✓ Both products are NVMe SSDs.
  • ✓ Both products support NVMe version 2.
  • ✓ Both products use TLC SSD storage type.
  • ✓ Both products use PCI Express version 5.
  • ✓ Both products have 8 controller channels.
  • ✓ Both products have a 5-year warranty period.

Main Differences

  • • Sequential read speed is 14800 MB/s on Samsung 9100 Pro 8TB and 14900 MB/s on Western Digital WD Black SN8100 2TB.
  • • Random read speed is 2200000 IOPS on Samsung 9100 Pro 8TB and 2300000 IOPS on Western Digital WD Black SN8100 2TB.
  • • Sequential write speed is 13400 MB/s on Samsung 9100 Pro 8TB and 14000 MB/s on Western Digital WD Black SN8100 2TB.
  • • Random write speed is 2600000 IOPS on Samsung 9100 Pro 8TB and 2300000 IOPS on Western Digital WD Black SN8100 2TB.
  • • Internal storage is 8000GB on Samsung 9100 Pro 8TB and 2000GB on Western Digital WD Black SN8100 2TB.
  • • The controller is Samsung Presto (S4LY027) on Samsung 9100 Pro 8TB and Silicon Motion SM2508 on Western Digital WD Black SN8100 2TB.
  • • Terabytes Written (TBW) is 4800 on Samsung 9100 Pro 8TB and 1200 on Western Digital WD Black SN8100 2TB.
  • • MTBF is 1.5 million hours on Samsung 9100 Pro 8TB and 1.8 million hours on Western Digital WD Black SN8100 2TB.
Specs Comparison
Samsung 9100 Pro 8TB

Samsung 9100 Pro 8TB

Western Digital WD Black SN8100 2TB

Western Digital WD Black SN8100 2TB

Read speed:
sequential read speed 14800 MB/s 14900 MB/s
random read speed 2200000 IOPS 2300000 IOPS

The Samsung 9100 Pro 8TB and Western Digital WD Black SN8100 2TB have similar sequential read speeds, with the Samsung offering 14,800 MB/s and the WD Black providing 14,900 MB/s. This shows a very slight edge for the WD Black in sequential read performance, though the difference is marginal.

When it comes to random read speed, the Samsung 9100 Pro offers 2,200,000 IOPS, while the WD Black SN8100 outperforms it with 2,300,000 IOPS. Again, the WD Black has a small advantage here in terms of random read performance.

Both drives demonstrate very high read speeds, with the WD Black slightly ahead in both sequential and random read metrics, but the difference in performance is minimal for most real-world uses.

Write speed:
sequential write speed 13400 MB/s 14000 MB/s
random write speed 2600000 IOPS 2300000 IOPS

The Samsung 9100 Pro 8TB and Western Digital WD Black SN8100 2TB both feature impressive write speeds, with the Samsung offering a sequential write speed of 13,400 MB/s and the WD Black providing a slightly higher 14,000 MB/s. This indicates a small advantage for the WD Black in sequential write performance.

In terms of random write speed, the Samsung 9100 Pro outperforms the WD Black, delivering 2,600,000 IOPS compared to the WD Black's 2,300,000 IOPS. This shows a notable difference in favor of the Samsung for random write operations.

While both drives offer excellent write speeds overall, the Samsung 9100 Pro has the edge in random write performance, while the WD Black is slightly ahead in sequential write speed.

General info:
type M2 M2
SSD cache DRAM cache DRAM cache
Is an NVMe SSD ✓ ✓
NVMe version 2 2
internal storage 8000GB 2000GB
release date February 2025 May 2025
controller Samsung Presto (S4LY027) Silicon Motion SM2508
SSD storage type TLC TLC
PCI Express (PCIe) version 5 5
Controller channels 8 8
Terabytes Written (TBW) 4800 1200
MTBF 1.5million hours 1.8million hours
warranty period 5 years 5 years
Has an integrated heatsink ✕ ✕
has RGB lighting ✕ ✕

Both the Samsung 9100 Pro 8TB and Western Digital WD Black SN8100 2TB are M.2 NVMe SSDs with DRAM cache. The Samsung offers a larger internal storage capacity of 8000GB, compared to the WD Black's 2000GB. Both use TLC NAND flash for storage, and they are equipped with PCIe 5.0 for fast data transfer speeds.

When it comes to controllers, the Samsung uses the Samsung Presto (S4LY027) controller, while the WD Black is equipped with a Silicon Motion SM2508 controller. The two products also have the same number of controller channels—eight in total. The Samsung 9100 Pro has a Terabytes Written (TBW) rating of 4800, which is much higher than the WD Black's 1200 TBW, suggesting the Samsung drive is rated for more extensive data writes.

Both drives come with a 5-year warranty, and neither has an integrated heatsink or RGB lighting. In terms of reliability, the Samsung 9100 Pro boasts a higher MTBF (Mean Time Between Failures) of 1.5 million hours, compared to the WD Black's 1.8 million hours. While both have strong longevity, the WD Black has a slightly higher MTBF, but this is a minimal difference in practice.

Comparison Summary

This is a specification comparison between Samsung 9100 Pro 8TB and Western Digital WD Black SN8100 2TB. Both products are M.2 type SSDs with DRAM cache, NVMe SSD support, and PCI Express version 5. However, the Samsung 9100 Pro 8TB offers significantly more internal storage at 8000GB compared to 2000GB on the Western Digital WD Black SN8100 2TB. Additionally, the Samsung product has a higher sequential write speed at 13400 MB/s, while the Western Digital product has a slightly higher sequential read speed at 14900 MB/s. The Samsung 9100 Pro 8TB also supports a higher Terabytes Written (TBW) of 4800, compared to 1200 for the Western Digital WD Black SN8100 2TB.