Bitmain S19k Pro vs StrongU STU-U8
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain S19k Pro | Specification | StrongU STU-U8 |
|---|---|---|
| 120.0 TH/s | Hashrate | 46.0 TH/s |
| 2,760 W | Power Consumption | 2,100 W |
| 23.0 J/TH | Efficiency | 45.7 J/TH |
| 75 dB | Noise Level | — |
| 14.5 kg | Weight | 8,200.0 kg |
| 9,417 BTU/hr | BTU Output | 7,165 BTU/hr |
| 36/100 | Home Mining Score | 26/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | StrongU |
Profitability Comparison
Bitmain S19k Pro
StrongU STU-U8
Based on BTC price of $77,920 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain S19k Pro comes out ahead — it takes 4 of 5 (efficiency, hashrate, home mining score, noise level). Where it pulls away hardest is 161% more hashrate (120.0 vs 46.0 TH/s). That said, the StrongU STU-U8 isn't beaten everywhere — it still wins power consumption. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain S19k Pro and StrongU STU-U8 sit on each measurable spec:
- Bitmain S19k Pro 161% more hashrate (120.0 vs 46.0 TH/s)
- StrongU STU-U8 24% better power draw (2,760 vs 2,100 W)
- Bitmain S19k Pro 50% better efficiency (23.0 vs 45.7 J/TH)
- Bitmain S19k Pro 100% better weight (14.5 vs 8,200.0 kg)
- Bitmain S19k Pro 31% more heat output (9,417 vs 7,165 BTU/hr)
- Bitmain S19k Pro 38% more home mining score (36.0 vs 26.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitmain S19k Pro | Metric | StrongU STU-U8 |
|---|---|---|
| $313 | Upfront cost (MSRP) | — |
| -$2.32 | Daily net profit | -$3.39 |
| -$1,160 | Net after 1 year | -$1,238 |
| -$2,008 | Net after 2 years | -$2,475 |
| -$2,855 | Net after 3 years | -$3,713 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Bitmain S19k ProScore: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain S19k Pro23.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain S19k Pro or StrongU STU-U8 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain S19k Pro is more profitable at $-2.32/day compared to $-3.39/day for the StrongU STU-U8. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain S19k Pro or StrongU STU-U8?
The Bitmain S19k Pro is quieter at 75 dB compared to the StrongU STU-U8 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain S19k Pro or StrongU STU-U8?
The Bitmain S19k Pro scores 36/100 on our Home Mining Score (vs 26/100 for the StrongU STU-U8). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Bitmain S19k Pro and StrongU STU-U8?
The Bitmain S19k Pro runs at 23.0 J/TH while the StrongU STU-U8 runs at 45.7 J/TH — a difference of 22.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 50% better efficiency (23.0 vs 45.7 J/TH).