Bitmain Antminer K5 (1130Gh) vs Antminer KS3
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer K5 (1130Gh) | Specification | Antminer KS3 |
|---|---|---|
| 1.1 TH/s | Hashrate | 9.4 TH/s |
| 1,580 W | Power Consumption | 3,500 W |
| 1,398.2 J/TH | Efficiency | 372.3 J/TH |
| — | Noise Level | 75 dB |
| 6,100.0 kg | Weight | 16.1 kg |
| 5,391 BTU/hr | BTU Output | 11,942 BTU/hr |
| 28/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| Eaglesong | Algorithm | KHeavyHash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer K5 (1130Gh)
Antminer KS3
Based on BTC price of $78,130 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Antminer KS3, which leads on 4 of 6 weighted factors (efficiency, hashrate, home mining score, noise level). The standout gap is 732% more hashrate (1.1 vs 9.4 TH/s) in the Antminer KS3's favour. The Bitmain Antminer K5 (1130Gh) holds the edge in power consumption and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer K5 (1130Gh) and Antminer KS3 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer KS3 732% more hashrate (1.1 vs 9.4 TH/s)
- Bitmain Antminer K5 (1130Gh) 55% better power draw (1,580 vs 3,500 W)
- Antminer KS3 73% better efficiency (1,398 vs 372 J/TH)
- Antminer KS3 100% better weight (6,100.0 vs 16.1 kg)
- Antminer KS3 122% more heat output (5,391 vs 11,942 BTU/hr)
- Antminer KS3 29% more home mining score (28.0 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 K5 (1130Gh) | Metric | Antminer KS3 |
|---|---|---|
| $925 | Upfront cost (MSRP) | $8,000 |
| -$3.75 | Daily net profit | -$8.06 |
| -$2,294 | Net after 1 year | -$10,943 |
| -$3,664 | Net after 2 years | -$13,885 |
| -$5,033 | Net after 3 years | -$16,828 |
| 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
Antminer KS3372.3 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer K5 (1130Gh) or Antminer KS3 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer K5 (1130Gh) is more profitable at $-3.75/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.
Bitmain Antminer K5 (1130Gh) vs Antminer KS3: which runs at a lower noise level?
The Antminer KS3 is quieter at 75 dB compared to the Bitmain Antminer K5 (1130Gh) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer K5 (1130Gh) or Antminer KS3?
The Antminer KS3 scores 36/100 on our Home Mining Score (vs 28/100 for the Bitmain Antminer K5 (1130Gh)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer K5 (1130Gh) vs Antminer KS3: how much does the efficiency gap matter?
The Bitmain Antminer K5 (1130Gh) runs at 1,398.2 J/TH while the Antminer KS3 runs at 372.3 J/TH — a difference of 1,025.9 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 73% better efficiency (1,398 vs 372 J/TH).