Antminer K7 vs Bitmain Antminer S23 Hyd 3U
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer K7 | Specification | Bitmain Antminer S23 Hyd 3U |
|---|---|---|
| 63.5 TH/s | Hashrate | 1.2 PH/s |
| 3,080 W | Power Consumption | 11,020 W |
| 48.5 J/TH | Efficiency | 9.5 J/TH |
| 75 dB | Noise Level | 50 dB |
| 14.0 kg | Weight | — |
| 10,509 BTU/hr | BTU Output | 37,600 BTU/hr |
| 36/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| Eaglesong | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer K7
Bitmain Antminer S23 Hyd 3U
Based on BTC price of $79,033 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S23 Hyd 3U, which leads on 5 of 6 weighted factors (efficiency, hashrate, home mining score, noise level, price-performance). Where it pulls away hardest is 1727% more hashrate (63.5 vs 1,160.0 TH/s). The Antminer K7 claws back ground on power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Antminer K7 and Bitmain Antminer S23 Hyd 3U diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S23 Hyd 3U 1727% more hashrate (63.5 vs 1,160.0 TH/s)
- Antminer K7 72% better power draw (3,080 vs 11,020 W)
- Bitmain Antminer S23 Hyd 3U 80% better efficiency (48.5 vs 9.5 J/TH)
- Bitmain Antminer S23 Hyd 3U 33% better noise (75.0 vs 50.0 dB)
- Bitmain Antminer S23 Hyd 3U 258% more heat output (10,509 vs 37,600 BTU/hr)
- Bitmain Antminer S23 Hyd 3U 22% more home mining score (36.0 vs 44.0)
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.
| Antminer K7 | Metric | Bitmain Antminer S23 Hyd 3U |
|---|---|---|
| $3,500 | Upfront cost (MSRP) | $7,988 |
| -$5.08 | Daily net profit | $15.74 |
| -$5,355 | Net after 1 year | -$2,243 |
| -$7,210 | Net after 2 years | +$3,503 |
| -$9,065 | Net after 3 years | +$9,248 |
| Does not pay back at current rates (negative daily profit) | Payback period | Pays for itself in ~17 months 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 S23 Hyd 3U$20.82/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S23 Hyd 3UScore: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S23 Hyd 3U9.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer K7 vs Bitmain Antminer S23 Hyd 3U: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S23 Hyd 3U is more profitable at $15.74/day compared to $-5.08/day for the Antminer K7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer K7 or the Bitmain Antminer S23 Hyd 3U better for noise-sensitive spaces?
The Bitmain Antminer S23 Hyd 3U is quieter at 50 dB compared to the Antminer K7 at 75 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 S23 Hyd 3U?
The Bitmain Antminer S23 Hyd 3U scores 44/100 on our Home Mining Score (vs 36/100 for the Antminer K7). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer K7 vs Bitmain Antminer S23 Hyd 3U: how much does the efficiency gap matter?
The Antminer K7 runs at 48.5 J/TH while the Bitmain Antminer S23 Hyd 3U runs at 9.5 J/TH — a difference of 39.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 80% better efficiency (48.5 vs 9.5 J/TH).