Antminer K7 vs Bitmain Antminer S21e Hyd (310Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Bitmain Antminer S21e Hyd (310Th) |
|---|---|---|
| 63.5 TH/s | Hashrate | 310.0 TH/s |
| 3,080 W | Power Consumption | 5,270 W |
| 48.5 J/TH | Efficiency | 17.0 J/TH |
| 75 dB | Noise Level | 75 dB |
| 14.0 kg | Weight | 12.8 kg |
| 10,509 BTU/hr | BTU Output | 17,981 BTU/hr |
| 36/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| Eaglesong | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Bitmain Antminer S21e Hyd (310Th)
Based on BTC price of $74,349 and current network difficulty as of Mar 16, 2026. Actual results vary.
Verdict
Based on specs, the Bitmain Antminer S21e Hyd (310Th) offers 65% better efficiency at 17.0 J/TH compared to the Antminer K7 at 48.5 J/TH. This directly impacts daily operating costs and long-term profitability.
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
Bitmain Antminer S21e Hyd (310Th)17.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer K7 or Bitmain Antminer S21e Hyd (310Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e Hyd (310Th) is more profitable at $-2.66/day compared to $-5.35/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 Antminer K7 or Bitmain Antminer S21e Hyd (310Th)?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Antminer K7 or Bitmain Antminer S21e Hyd (310Th)?
The Antminer K7 scores 36/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S21e Hyd (310Th)). 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 S21e Hyd (310Th)?
The Antminer K7 runs at 48.5 J/TH while the Bitmain Antminer S21e Hyd (310Th) runs at 17.0 J/TH — a difference of 31.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.