Bitmain Antminer KS3 (9.4Th) vs Antminer KS5
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer KS3 (9.4Th) | Specification | Antminer KS5 |
|---|---|---|
| 9.4 TH/s | Hashrate | 20.0 TH/s |
| 3,500 W | Power Consumption | 3,000 W |
| 372.3 J/TH | Efficiency | 150.0 J/TH |
| — | Noise Level | 76 dB |
| 17.7 kg | Weight | 15.8 kg |
| 11,942 BTU/hr | BTU Output | 10,236 BTU/hr |
| 22/100 | Home Mining Score | 29/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | KHeavyHash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer KS3 (9.4Th)
Antminer KS5
Based on BTC price of $78,234 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Antminer KS5 edges it: 5 of 6 factors go its way (efficiency, hashrate, power consumption, home mining score, noise level). Its biggest concrete edge: 60% better efficiency (372 vs 150 J/TH). The Bitmain Antminer KS3 (9.4Th) holds the edge in price-performance. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer KS3 (9.4Th) and Antminer KS5 sit on each measurable spec:
- Antminer KS5 113% more hashrate (9.4 vs 20.0 TH/s)
- Antminer KS5 14% better power draw (3,500 vs 3,000 W)
- Antminer KS5 60% better efficiency (372 vs 150 J/TH)
- Antminer KS5 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)
- Antminer KS5 32% more home mining score (22.0 vs 29.0)
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 | Antminer KS5 |
|---|---|---|
| $2,500 | Upfront cost (MSRP) | $12,000 |
| -$8.06 | Daily net profit | -$6.48 |
| -$5,442 | Net after 1 year | -$14,365 |
| -$8,385 | Net after 2 years | -$16,730 |
| -$11,327 | Net after 3 years | -$19,096 |
| 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
Antminer KS5Score: 29/100. 76 dB noise level.
Best for Efficiency
Antminer KS5150.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer KS3 (9.4Th) vs Antminer KS5: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer KS5 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 Antminer KS5?
The Antminer KS5 is quieter at 76 dB compared to the Bitmain Antminer KS3 (9.4Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer KS3 (9.4Th) or Antminer KS5?
The Antminer KS5 scores 29/100 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 Antminer KS5 on J/TH?
The Bitmain Antminer KS3 (9.4Th) runs at 372.3 J/TH while the Antminer KS5 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 efficiency (372 vs 150 J/TH).