Bitmain Antminer Z11 vs Bitmain Antminer Z15
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer Z11 | Specification | Bitmain Antminer Z15 |
|---|---|---|
| 135.0 Ksol/s | Hashrate | 420.0 Ksol/s |
| 1,418 W | Power Consumption | 1,510 W |
| 10.5 J/TH | Efficiency | 3.6 J/TH |
| — | Noise Level | — |
| 5,400.0 kg | Weight | 9,000.0 kg |
| 4,838 BTU/hr | BTU Output | 5,152 BTU/hr |
| 31/100 | Home Mining Score | 28/100 |
| — | Release Year | — |
| Equihash | Algorithm | Equihash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer Z11
Bitmain Antminer Z15
Based on BTC price of $78,185 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: 2 of 5 factors go its way (efficiency, hashrate). Where it pulls away hardest is 211% more hashrate (135 vs 420 TH/s). The Bitmain Antminer Z11 claws back ground on power consumption and home mining score and price-performance. 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 Antminer Z11 and Bitmain Antminer Z15 sit on each measurable spec:
- Bitmain Antminer Z15 211% more hashrate (135 vs 420 TH/s)
- Bitmain Antminer Z11 6% better power draw (1,418 vs 1,510 W)
- Bitmain Antminer Z15 66% better efficiency (10.5 vs 3.6 J/TH)
- Bitmain Antminer Z11 40% better weight (5,400 vs 9,000 kg)
- Bitmain Antminer Z15 6% more heat output (4,838 vs 5,152 BTU/hr)
- Bitmain Antminer Z11 11% more home mining score (31.0 vs 28.0)
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 Z11 | Metric | Bitmain Antminer Z15 |
|---|---|---|
| $200 | Upfront cost (MSRP) | $998 |
| $1.45 | Daily net profit | $11.49 |
| +$331 | Net after 1 year | +$3,195 |
| +$861 | Net after 2 years | +$7,388 |
| +$1,392 | Net after 3 years | +$11,581 |
| Pays for itself in ~5 months at current rates | Payback period | Pays for itself in ~87 days at current rates |
At the default rate, the Bitmain Antminer Z15 reaches break-even first — but plug in your own electricity cost above, since payback shifts sharply with it.
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$10.03/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer Z11Score: 31/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer Z153.6 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer Z11 vs Bitmain Antminer Z15: which one earns more per day?
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 $1.45/day for the Bitmain Antminer Z11. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer Z11 or Bitmain Antminer Z15?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Bitmain Antminer Z11 vs Bitmain Antminer Z15: which fits a residential setup better?
The Bitmain Antminer Z11 scores 31/100 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.
What is the efficiency difference between Bitmain Antminer Z11 and Bitmain Antminer Z15?
The Bitmain Antminer Z11 runs at 10.5 J/TH while the Bitmain Antminer Z15 runs at 3.6 J/TH — a difference of 6.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 66% better efficiency (10.5 vs 3.6 J/TH).