Bitmain Antminer KS3 (9.4Th) vs Bitmain Antminer KS5 (20Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer KS3 (9.4Th) | Specification | Bitmain Antminer KS5 (20Th) |
|---|---|---|
| 9.4 TH/s | Taux de hachage | 20.0 TH/s |
| 3,500 W | Consommation électrique | 3,000 W |
| 372.3 J/TH | Efficiency | 150.0 J/TH |
| — | Niveau de bruit | 75 dB |
| 17.7 kg | Weight | 15.8 kg |
| 11,942 BTU/hr | BTU Output | 10,236 BTU/hr |
| 22/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| KHeavyHash | Algorithme | KHeavyHash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer KS3 (9.4Th)
Bitmain Antminer KS5 (20Th)
Based on BTC price of $78,217 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer KS5 (20Th), which leads on 6 of 6 weighted factors (efficacité, hashrate, consommation électrique, score de minage domestique, niveau sonore, rapport qualité-prix). Its biggest concrete edge: 60% better efficacité (372 vs 150 J/TH). The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Bitmain Antminer KS3 (9.4Th) and Bitmain Antminer KS5 (20Th) diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer KS5 (20Th) 113% more hashrate (9.4 vs 20.0 TH/s)
- Bitmain Antminer KS5 (20Th) 14% better power draw (3,500 vs 3,000 W)
- Bitmain Antminer KS5 (20Th) 60% better efficacité (372 vs 150 J/TH)
- Bitmain Antminer KS5 (20Th) 11% better weight (17.7 vs 15.8 kg)
- Bitmain Antminer KS3 (9.4Th) 17% more heat output (11,942 vs 10,236 BTU/hr)
- Bitmain Antminer KS5 (20Th) 64% more score de minage domestique (22.0 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 KS3 (9.4Th) | Metric | Bitmain Antminer KS5 (20Th) |
|---|---|---|
| $2,500 | Upfront cost (MSRP) | $799 |
| -$8.06 | Daily net profit | -$6.48 |
| -$5,443 | Net after 1 year | -$3,164 |
| -$8,385 | Net after 2 years | -$5,529 |
| -$11,328 | Net after 3 years | -$7,895 |
| 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
Bitmain Antminer KS5 (20Th)Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer KS5 (20Th)150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer KS3 (9.4Th) vs Bitmain Antminer KS5 (20Th): which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer KS5 (20Th) is more profitable at $-6.48/day compared to $-8.06/day for the Bitmain Antminer KS3 (9.4Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer KS3 (9.4Th) or Bitmain Antminer KS5 (20Th)?
The Bitmain Antminer KS5 (20Th) is quieter at 75 dB compared to the Bitmain Antminer KS3 (9.4Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer KS3 (9.4Th) or the Bitmain Antminer KS5 (20Th)?
The Bitmain Antminer KS5 (20Th) scores 36/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer KS3 (9.4Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer KS3 (9.4Th) and Bitmain Antminer KS5 (20Th) on J/TH?
The Bitmain Antminer KS3 (9.4Th) runs at 372.3 J/TH while the Bitmain Antminer KS5 (20Th) runs at 150.0 J/TH — a difference of 222.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 60% better efficacité (372 vs 150 J/TH).