Left · Western Digital
WD Black SN8100 2TB
Spec score
Spec score 97
$470
Amazon US, Oct 24
WD Black SN8100 2TB against WD Black SN8100 4TB
WD Black SN8100 4TB leads on the overall index. The price beside each button is the Amazon US reading where ScoutPrices has one; the comparison below is worked on typical prices.
Right · Western Digital
WD Black SN8100 4TB
Spec score
Spec score 99
$860
Amazon US, Oct 24
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
WD Black SN8100 2TB: 97
WD Black SN8100 4TB: 99
2 ptsto the right
Price and value
Worked on typical prices, the figures the comparison is built on.
Value, points per $100
WD Black SN8100 2TB: 24.3
WD Black SN8100 4TB: 15
62%to the left
Typical price
WD Black SN8100 2TB: $400
WD Black SN8100 4TB: $660
$260to the left
From the spec sheets
Capacity
WD Black SN8100 2TB: 2000 GB
WD Black SN8100 4TB: 4000 GB
100%to the right
Sequential read
WD Black SN8100 2TB: 14900 MB/s
WD Black SN8100 4TB: 14900 MB/s
level
Sequential write
WD Black SN8100 2TB: 14000 MB/s
WD Black SN8100 4TB: 14000 MB/s
level
The verdict
- WD Black SN8100 2TB and WD Black SN8100 4TB are level on spec score.
- The WD Black SN8100 2TB typically costs $260 less.
- Per dollar, the WD Black SN8100 2TB is the better buy: 24.3 points per $100 against 15.
Specifications
| Spec | WD Black SN8100 2TB | WD Black SN8100 4TB |
|---|---|---|
| Interface | NVMe PCIe 5.0 | NVMe PCIe 5.0 |
| Capacity | 2 TB | 4 TB (better) |
| Sequential read | 14,900 MB/s | 14,900 MB/s |
| Sequential write | 14,000 MB/s | 14,000 MB/s |
| DRAM cache | Yes | Yes |
| Brand | Western Digital | Western Digital |
| Released | 2025 | 2025 |
| Typical price | $400 (better) | $660 |
The better figure of each pair is in green, with a tick.