Antminer K7 vs Bitmain Antminer Z15 Pro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Bitmain Antminer Z15 Pro |
|---|---|---|
| 63.5 TH/s | Hashrate | 840.0 Ksol/s |
| 3,080 W | Power Consumption | 2,780 W |
| 48.5 J/TH | Efficiency | 3.3 J/TH |
| 75 dB | Noise Level | — |
| 14.0 kg | Weight | 17.0 kg |
| 10,509 BTU/hr | BTU Output | 9,485 BTU/hr |
| 36/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| Eaglesong | Algorithm | Equihash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Bitmain Antminer Z15 Pro
Based on BTC price of $78,175 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer Z15 Pro comes out ahead — it takes 4 of 6 (efficiency, hashrate, power consumption, price-performance). The standout gap is 93% better efficiency (48.5 vs 3.3 J/TH) in the Bitmain Antminer Z15 Pro's favour. The Antminer K7 claws back ground on home mining score and noise level. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Antminer K7 and Bitmain Antminer Z15 Pro actually differ, with the gap quantified:
- Bitmain Antminer Z15 Pro 1223% more hashrate (63.5 vs 840.0 TH/s)
- Bitmain Antminer Z15 Pro 10% better power draw (3,080 vs 2,780 W)
- Bitmain Antminer Z15 Pro 93% better efficiency (48.5 vs 3.3 J/TH)
- Antminer K7 17% better weight (14.0 vs 17.0 kg)
- Antminer K7 11% more heat output (10,509 vs 9,485 BTU/hr)
- Antminer K7 64% more home mining score (36.0 vs 22.0)
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.
| Antminer K7 | Metric | Bitmain Antminer Z15 Pro |
|---|---|---|
| $3,500 | Upfront cost (MSRP) | $1,800 |
| -$5.11 | Daily net profit | $23.55 |
| -$5,364 | Net after 1 year | +$6,795 |
| -$7,229 | Net after 2 years | +$15,389 |
| -$9,093 | Net after 3 years | +$23,984 |
| Does not pay back at current rates (negative daily profit) | Payback period | Pays for itself in ~76 days at current rates |
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$28.65/day higher profit at current rates.
Best for Home Mining
Antminer K7Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer Z15 Pro3.3 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer K7 or Bitmain Antminer Z15 Pro more profitable?
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 $-5.11/day for the Antminer K7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer K7 vs Bitmain Antminer Z15 Pro: which runs at a lower noise level?
The Antminer K7 is quieter at 75 dB compared to the Bitmain Antminer Z15 Pro at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer K7 or Bitmain Antminer Z15 Pro?
The Antminer K7 scores 36/100 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.
What is the efficiency difference between Antminer K7 and Bitmain Antminer Z15 Pro?
The Antminer K7 runs at 48.5 J/TH while the Bitmain Antminer Z15 Pro runs at 3.3 J/TH — a difference of 45.2 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 93% better efficiency (48.5 vs 3.3 J/TH).