Bitmain Antminer HS3 vs Antminer K7
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer HS3 | Specification | Antminer K7 |
|---|---|---|
| 9.0 TH/s | Hashrate | 63.5 TH/s |
| 2,079 W | Power Consumption | 3,080 W |
| 231.0 J/TH | Efficiency | 48.5 J/TH |
| — | Noise Level | 75 dB |
| 16,100.0 kg | Weight | 14.0 kg |
| 7,094 BTU/hr | BTU Output | 10,509 BTU/hr |
| 26/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| Blake2b+sha3 | Algorithm | Eaglesong |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer HS3
Antminer K7
Based on BTC price of $76,769 and current network difficulty as of May 18, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Antminer K7 edges it: 5 of 6 factors go its way (efficiency, hashrate, home mining score, noise level, price-performance). Where it pulls away hardest is 606% more hashrate (9.0 vs 63.5 TH/s). The Bitmain Antminer HS3 claws back ground on power consumption. 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 HS3 and Antminer K7 actually differ, with the gap quantified:
- Antminer K7 606% more hashrate (9.0 vs 63.5 TH/s)
- Bitmain Antminer HS3 33% better power draw (2,079 vs 3,080 W)
- Antminer K7 79% better efficiency (231.0 vs 48.5 J/TH)
- Antminer K7 100% better weight (16,100.0 vs 14.0 kg)
- Antminer K7 48% more heat output (7,094 vs 10,509 BTU/hr)
- Antminer K7 38% more home mining score (26.0 vs 36.0)
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 Antminer HS3 | Metric | Antminer K7 |
|---|---|---|
| $900 | Upfront cost (MSRP) | $3,500 |
| -$4.67 | Daily net profit | -$5.15 |
| -$2,605 | Net after 1 year | -$5,379 |
| -$4,310 | Net after 2 years | -$7,259 |
| -$6,015 | Net after 3 years | -$9,138 |
| Does not pay back at current rates (negative daily profit) | 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
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer K7Score: 36/100. 75 dB noise level.
Best for Efficiency
Antminer K748.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer HS3 or the Antminer K7?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer HS3 is more profitable at $-4.67/day compared to $-5.15/day for the Antminer K7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer HS3 or Antminer K7?
The Antminer K7 is quieter at 75 dB compared to the Bitmain Antminer HS3 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer HS3 or Antminer K7?
The Antminer K7 scores 36/100 on our Home Mining Score (vs 26/100 for the Bitmain Antminer HS3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer HS3 vs Antminer K7: how much does the efficiency gap matter?
The Bitmain Antminer HS3 runs at 231.0 J/TH while the Antminer K7 runs at 48.5 J/TH — a difference of 182.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 79% better efficiency (231.0 vs 48.5 J/TH).