Bitmain Antminer KS3 (8.3Th) vs Bitmain KAS KS7
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer KS3 (8.3Th) | Specification | Bitmain KAS KS7 |
|---|---|---|
| 8.3 TH/s | Taux de hachage | 40.0 TH/s |
| 3,188 W | Consommation électrique | 3,080 W |
| 384.1 J/TH | Efficiency | 77.0 J/TH |
| — | Niveau de bruit | 75 dB |
| — | Weight | 16.4 kg |
| 10,878 BTU/hr | BTU Output | 10,509 BTU/hr |
| 22/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| KHeavyHash | Algorithme | KHeavyHash |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer KS3 (8.3Th)
Bitmain KAS KS7
Based on BTC price of $78,210 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain KAS KS7, which leads on 6 of 6 weighted factors (efficacité, hashrate, consommation électrique, score de minage domestique, niveau sonore, rapport qualité-prix). Where it pulls away hardest is 80% better efficacité (384.1 vs 77.0 J/TH). Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer KS3 (8.3Th) and Bitmain KAS KS7 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain KAS KS7 382% more hashrate (8.3 vs 40.0 TH/s)
- Bitmain KAS KS7 3% better power draw (3,188 vs 3,080 W)
- Bitmain KAS KS7 80% better efficacité (384.1 vs 77.0 J/TH)
- Bitmain Antminer KS3 (8.3Th) 4% more heat output (10,878 vs 10,509 BTU/hr)
- Bitmain KAS KS7 64% more score de minage domestique (22.0 vs 36.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer KS3 (8.3Th) | Metric | Bitmain KAS KS7 |
|---|---|---|
| $3,850 | Upfront cost (MSRP) | $1,590 |
| -$7.35 | Daily net profit | -$5.95 |
| -$6,534 | Net after 1 year | -$3,763 |
| -$9,217 | Net after 2 years | -$5,935 |
| -$11,901 | Net after 3 years | -$8,108 |
| 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 KAS KS7Score: 36/100. 75 dB noise level.
Best for Efficiency
Bitmain KAS KS777.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer KS3 (8.3Th) or Bitmain KAS KS7 more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain KAS KS7 is more profitable at $-5.95/day compared to $-7.35/day for the Bitmain Antminer KS3 (8.3Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer KS3 (8.3Th) or Bitmain KAS KS7?
The Bitmain KAS KS7 is quieter at 75 dB compared to the Bitmain Antminer KS3 (8.3Th) 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 (8.3Th) or the Bitmain KAS KS7?
The Bitmain KAS KS7 scores 36/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer KS3 (8.3Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer KS3 (8.3Th) vs Bitmain KAS KS7: how much does the efficiency gap matter?
The Bitmain Antminer KS3 (8.3Th) runs at 384.1 J/TH while the Bitmain KAS KS7 runs at 77.0 J/TH — a difference of 307.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 80% better efficacité (384.1 vs 77.0 J/TH).