Bitmain Antminer Z15 Pro vs Bitmain Antminer Z9
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer Z15 Pro | Specification | Bitmain Antminer Z9 |
|---|---|---|
| 840.0 Ksol/s | Hashrate | 42.0 Ksol/s |
| 2,780 W | Power Consumption | 970 W |
| 3.3 J/TH | Efficiency | 23.1 J/TH |
| — | Noise Level | — |
| 17.0 kg | Weight | 4,700.0 kg |
| 9,485 BTU/hr | BTU Output | 3,310 BTU/hr |
| 22/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| Equihash | Algorithm | Equihash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer Z15 Pro
Bitmain Antminer Z9
Based on BTC price of $78,185 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer Z15 Pro wins on 2 of 4 factors (efficiency, hashrate). Where it pulls away hardest is 1900% more hashrate (840.0 vs 42.0 TH/s). That said, the Bitmain Antminer Z9 isn't beaten everywhere — it still wins power consumption and home mining score. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Here is every spec where the Bitmain Antminer Z15 Pro and Bitmain Antminer Z9 actually differ, with the gap quantified:
- Bitmain Antminer Z15 Pro 1900% more hashrate (840.0 vs 42.0 TH/s)
- Bitmain Antminer Z9 65% better power draw (2,780 vs 970 W)
- Bitmain Antminer Z15 Pro 86% better efficiency (3.3 vs 23.1 J/TH)
- Bitmain Antminer Z15 Pro 100% better weight (17.0 vs 4,700.0 kg)
- Bitmain Antminer Z15 Pro 187% more heat output (9,485 vs 3,310 BTU/hr)
- Bitmain Antminer Z9 41% more home mining score (22.0 vs 31.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer Z15 Pro | Metric | Bitmain Antminer Z9 |
|---|---|---|
| $1,800 | Upfront cost (MSRP) | — |
| $23.55 | Daily net profit | -$0.82 |
| +$6,796 | Net after 1 year | -$298 |
| +$15,392 | Net after 2 years | -$596 |
| +$23,988 | Net after 3 years | -$894 |
| Pays for itself in ~76 days at current rates | 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
Bitmain Antminer Z15 Pro$24.37/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer Z9Score: 31/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer Z15 Pro3.3 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer Z15 Pro vs Bitmain Antminer Z9: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer Z15 Pro is more profitable at $23.55/day compared to $-0.82/day for the Bitmain Antminer Z9. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer Z15 Pro or Bitmain Antminer Z9?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Bitmain Antminer Z15 Pro or the Bitmain Antminer Z9?
The Bitmain Antminer Z9 scores 31/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer Z15 Pro). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer Z15 Pro and Bitmain Antminer Z9 on J/TH?
The Bitmain Antminer Z15 Pro runs at 3.3 J/TH while the Bitmain Antminer Z9 runs at 23.1 J/TH — a difference of 19.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 86% better efficiency (3.3 vs 23.1 J/TH).