Bitmain ANTMINER DR7 vs Antminer K7
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain ANTMINER DR7 | Specification | Antminer K7 |
|---|---|---|
| 127.0 TH/s | Hashrate | 63.5 TH/s |
| 2,730 W | Power Consumption | 3,080 W |
| 21.5 J/TH | Efficiency | 48.5 J/TH |
| 75 dB | Noise Level | 75 dB |
| 1.6 kg | Weight | 14.0 kg |
| 9,315 BTU/hr | BTU Output | 10,509 BTU/hr |
| 36/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| Blake256r14 | Algorithm | Eaglesong |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain ANTMINER DR7
Antminer K7
Based on BTC price of $77,929 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain ANTMINER DR7 comes out ahead — it takes 4 of 4 (efficiency, hashrate, power consumption, price-performance). The standout gap is 56% better efficiency (21.5 vs 48.5 J/TH) in the Bitmain ANTMINER DR7's favour. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Bitmain ANTMINER DR7 and Antminer K7 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain ANTMINER DR7 100% more hashrate (127.0 vs 63.5 TH/s)
- Bitmain ANTMINER DR7 11% better power draw (2,730 vs 3,080 W)
- Bitmain ANTMINER DR7 56% better efficiency (21.5 vs 48.5 J/TH)
- Bitmain ANTMINER DR7 89% better weight (1.6 vs 14.0 kg)
- Antminer K7 13% more heat output (9,315 vs 10,509 BTU/hr)
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 DR7 | Metric | Antminer K7 |
|---|---|---|
| $1,639 | Upfront cost (MSRP) | $3,500 |
| -$2.00 | Daily net profit | -$5.11 |
| -$2,368 | Net after 1 year | -$5,367 |
| -$3,097 | Net after 2 years | -$7,234 |
| -$3,826 | Net after 3 years | -$9,101 |
| 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
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitmain ANTMINER DR721.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain ANTMINER DR7 or Antminer K7 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain ANTMINER DR7 is more profitable at $-2.00/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.
Is the Bitmain ANTMINER DR7 or the Antminer K7 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 DR7 or the Antminer K7?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
How far apart are the Bitmain ANTMINER DR7 and Antminer K7 on J/TH?
The Bitmain ANTMINER DR7 runs at 21.5 J/TH while the Antminer K7 runs at 48.5 J/TH — a difference of 27.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 56% better efficiency (21.5 vs 48.5 J/TH).