Bitmain Antminer Z15 vs Bitmain Antminer Z9 Mini
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer Z15 | Specification | Bitmain Antminer Z9 Mini |
|---|---|---|
| 420.0 Ksol/s | Hashrate | 10.0 Ksol/s |
| 1,510 W | Power Consumption | 300 W |
| 3.6 J/TH | Efficiency | 30.0 J/TH |
| — | Noise Level | — |
| 9,000.0 kg | Weight | — |
| 5,152 BTU/hr | BTU Output | 1,024 BTU/hr |
| 28/100 | Home Mining Score | 34/100 |
| — | Release Year | — |
| Equihash | Algorithm | Equihash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer Z15
Bitmain Antminer Z9 Mini
Based on BTC price of $78,194 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer Z15 edges it: 3 of 5 factors go its way (efficiency, hashrate, price-performance). The standout gap is 4100% more hashrate (420.0 vs 10.0 TH/s) in the Bitmain Antminer Z15's favour. The Bitmain Antminer Z9 Mini claws back ground on 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
Stripped to the numbers, this is how far apart the Bitmain Antminer Z15 and Bitmain Antminer Z9 Mini sit on each measurable spec:
- Bitmain Antminer Z15 4100% more hashrate (420.0 vs 10.0 TH/s)
- Bitmain Antminer Z9 Mini 80% better power draw (1,510 vs 300 W)
- Bitmain Antminer Z15 88% better efficiency (3.6 vs 30.0 J/TH)
- Bitmain Antminer Z15 403% more heat output (5,152 vs 1,024 BTU/hr)
- Bitmain Antminer Z9 Mini 21% more home mining score (28.0 vs 34.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitmain Antminer Z15 | Metric | Bitmain Antminer Z9 Mini |
|---|---|---|
| $998 | Upfront cost (MSRP) | $150 |
| $11.49 | Daily net profit | -$0.36 |
| +$3,196 | Net after 1 year | -$281 |
| +$7,389 | Net after 2 years | -$413 |
| +$11,583 | Net after 3 years | -$544 |
| Pays for itself in ~87 days at current rates | Payback period | Does not pay back at current rates (negative daily profit) |
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$11.85/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer Z9 MiniScore: 34/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer Z153.6 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer Z15 or the Bitmain Antminer Z9 Mini?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer Z15 is more profitable at $11.49/day compared to $-0.36/day for the Bitmain Antminer Z9 Mini. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer Z15 or the Bitmain Antminer Z9 Mini better for noise-sensitive spaces?
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 or the Bitmain Antminer Z9 Mini?
The Bitmain Antminer Z9 Mini scores 34/100 on our Home Mining Score (vs 28/100 for the Bitmain Antminer Z15). 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 and Bitmain Antminer Z9 Mini on J/TH?
The Bitmain Antminer Z15 runs at 3.6 J/TH while the Bitmain Antminer Z9 Mini runs at 30.0 J/TH — a difference of 26.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 88% better efficiency (3.6 vs 30.0 J/TH).