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ScoutSpecs

Samsung 9100 Pro 4TB against WD Black SN8100 4TB

Level on the overall index; the details below decide it. The price beside each button is the Amazon US reading where ScoutPrices has one; the comparison below is worked on typical prices.

Head to head

Scores

Indices out of 100 on ScoutSpecs' own scale, one per kind of work. They are not frames per second and not a measurement of any one sample.

  • Spec score

    Samsung 9100 Pro 4TB: 99

    WD Black SN8100 4TB: 99

    level

Price and value

Worked on typical prices, the figures the comparison is built on.

  • Value, points per $100

    Samsung 9100 Pro 4TB: 7.7

    WD Black SN8100 4TB: 15

    95%to the right

  • Typical price

    Samsung 9100 Pro 4TB: $1,290

    WD Black SN8100 4TB: $660

    $630to the right

From the spec sheets

  • Capacity

    Samsung 9100 Pro 4TB: 4000 GB

    WD Black SN8100 4TB: 4000 GB

    level

  • Sequential read

    Samsung 9100 Pro 4TB: 14700 MB/s

    WD Black SN8100 4TB: 14900 MB/s

    1%to the right

  • Sequential write

    Samsung 9100 Pro 4TB: 13400 MB/s

    WD Black SN8100 4TB: 14000 MB/s

    4%to the right

The verdict

  • Samsung 9100 Pro 4TB and WD Black SN8100 4TB are level on spec score.
  • The WD Black SN8100 4TB typically costs $630 less.
  • Per dollar, the WD Black SN8100 4TB is the better buy: 15 points per $100 against 7.7.

Specifications

SpecSamsung 9100 Pro 4TBWD Black SN8100 4TB
InterfaceNVMe PCIe 5.0NVMe PCIe 5.0
Capacity4 TB4 TB
Sequential read14,700 MB/s14,900 MB/s (better)
Sequential write13,400 MB/s14,000 MB/s (better)
DRAM cacheYesYes
BrandSamsungWestern Digital
Released20252025
Typical price$1,290$660 (better)

The better figure of each pair is in green, with a tick.

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