Antminer KS3 vs Bitmain Antminer Z11
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Bitmain Antminer Z11 |
|---|---|---|
| 9.4 TH/s | Hashrate | 135.0 Ksol/s |
| 3,500 W | Power Consumption | 1,418 W |
| 372.3 J/TH | Efficiency | 10.5 J/TH |
| 75 dB | Noise Level | — |
| 16.1 kg | Weight | 5,400.0 kg |
| 11,942 BTU/hr | BTU Output | 4,838 BTU/hr |
| 36/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | Equihash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS3
Bitmain Antminer Z11
Based on BTC price of $78,184 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer Z11 wins on 4 of 6 factors (efficiency, hashrate, power consumption, price-performance). Where it pulls away hardest is 97% better efficiency (372.3 vs 10.5 J/TH). The Antminer KS3 holds the edge in home mining score and noise level. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the Antminer KS3 and Bitmain Antminer Z11 actually differ, with the gap quantified:
- Bitmain Antminer Z11 1336% more hashrate (9.4 vs 135.0 TH/s)
- Bitmain Antminer Z11 59% better power draw (3,500 vs 1,418 W)
- Bitmain Antminer Z11 97% better efficiency (372.3 vs 10.5 J/TH)
- Antminer KS3 100% better weight (16.1 vs 5,400.0 kg)
- Antminer KS3 147% more heat output (11,942 vs 4,838 BTU/hr)
- Antminer KS3 16% more home mining score (36.0 vs 31.0)
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 KS3 | Metric | Bitmain Antminer Z11 |
|---|---|---|
| $8,000 | Upfront cost (MSRP) | $200 |
| -$8.06 | Daily net profit | $1.45 |
| -$10,943 | Net after 1 year | +$331 |
| -$13,885 | Net after 2 years | +$861 |
| -$16,828 | Net after 3 years | +$1,392 |
| Does not pay back at current rates (negative daily profit) | Payback period | Pays for itself in ~5 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 Z11$9.52/day higher profit at current rates.
Best for Home Mining
Antminer KS3Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer Z1110.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer KS3 or the Bitmain Antminer Z11?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer Z11 is more profitable at $1.45/day compared to $-8.06/day for the Antminer KS3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer KS3 or Bitmain Antminer Z11?
The Antminer KS3 is quieter at 75 dB compared to the Bitmain Antminer Z11 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer KS3 vs Bitmain Antminer Z11: which fits a residential setup better?
The Antminer KS3 scores 36/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer Z11). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer KS3 vs Bitmain Antminer Z11: how much does the efficiency gap matter?
The Antminer KS3 runs at 372.3 J/TH while the Bitmain Antminer Z11 runs at 10.5 J/TH — a difference of 361.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 97% better efficiency (372.3 vs 10.5 J/TH).