Antminer KS3 vs Bitmain Antminer S9 (13Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Bitmain Antminer S9 (13Th) |
|---|---|---|
| 9.4 TH/s | Hashrate | 13.0 TH/s |
| 3,500 W | Power Consumption | 1,300 W |
| 372.3 J/TH | Efficiency | 100.0 J/TH |
| 75 dB | Noise Level | — |
| 16.1 kg | Weight | 4,200.0 kg |
| 11,942 BTU/hr | BTU Output | 4,436 BTU/hr |
| 36/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS3
Bitmain Antminer S9 (13Th)
Based on BTC price of $79,213 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S9 (13Th) wins on 4 of 6 factors (efficiency, hashrate, power consumption, price-performance). Its biggest concrete edge: 73% better efficiency (372 vs 100 J/TH). That said, the Antminer KS3 isn't beaten everywhere — it still wins home mining score and noise level. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer KS3 and Bitmain Antminer S9 (13Th) sit on each measurable spec:
- Bitmain Antminer S9 (13Th) 38% more hashrate (9.4 vs 13.0 TH/s)
- Bitmain Antminer S9 (13Th) 63% better power draw (3,500 vs 1,300 W)
- Bitmain Antminer S9 (13Th) 73% better efficiency (372 vs 100 J/TH)
- Antminer KS3 100% better weight (16.1 vs 4,200.0 kg)
- Antminer KS3 169% more heat output (11,942 vs 4,436 BTU/hr)
- Antminer KS3 16% more home mining score (36.0 vs 31.0)
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.
| Antminer KS3 | Metric | Bitmain Antminer S9 (13Th) |
|---|---|---|
| $8,000 | Upfront cost (MSRP) | $65 |
| -$8.06 | Daily net profit | -$2.65 |
| -$10,941 | Net after 1 year | -$1,031 |
| -$13,882 | Net after 2 years | -$1,997 |
| -$16,823 | Net after 3 years | -$2,962 |
| 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 KS3Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain Antminer S9 (13Th)100.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer KS3 vs Bitmain Antminer S9 (13Th): which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S9 (13Th) is more profitable at $-2.65/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.
Is the Antminer KS3 or the Bitmain Antminer S9 (13Th) better for noise-sensitive spaces?
The Antminer KS3 is quieter at 75 dB compared to the Bitmain Antminer S9 (13Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Antminer KS3 or the Bitmain Antminer S9 (13Th)?
The Antminer KS3 scores 36/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer S9 (13Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer KS3 vs Bitmain Antminer S9 (13Th): how much does the efficiency gap matter?
The Antminer KS3 runs at 372.3 J/TH while the Bitmain Antminer S9 (13Th) runs at 100.0 J/TH — a difference of 272.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 73% better efficiency (372 vs 100 J/TH).