Bitmain Antminer KS3 (8.3Th) vs Bitmain Antminer KS5 (20Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer KS3 (8.3Th) | Specification | Bitmain Antminer KS5 (20Th) |
|---|---|---|
| 8.3 TH/s | Taux de hachage | 20.0 TH/s |
| 3,188 W | Consommation électrique | 3,000 W |
| 384.1 J/TH | Efficiency | 150.0 J/TH |
| — | Niveau de bruit | 75 dB |
| — | Weight | 15.8 kg |
| 10,878 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 (8.3Th)
Bitmain Antminer KS5 (20Th)
Based on BTC price of $78,195 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). Where it pulls away hardest is 61% better efficacité (384 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
Here is every spec where the Bitmain Antminer KS3 (8.3Th) and Bitmain Antminer KS5 (20Th) actually differ, with the gap quantified:
- Bitmain Antminer KS5 (20Th) 141% more hashrate (8.3 vs 20.0 TH/s)
- Bitmain Antminer KS5 (20Th) 6% better power draw (3,188 vs 3,000 W)
- Bitmain Antminer KS5 (20Th) 61% better efficacité (384 vs 150 J/TH)
- Bitmain Antminer KS3 (8.3Th) 6% more heat output (10,878 vs 10,236 BTU/hr)
- Bitmain Antminer KS5 (20Th) 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 Antminer KS5 (20Th) |
|---|---|---|
| $3,850 | Upfront cost (MSRP) | $799 |
| -$7.35 | Daily net profit | -$6.48 |
| -$6,534 | Net after 1 year | -$3,164 |
| -$9,217 | Net after 2 years | -$5,530 |
| -$11,901 | 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 (8.3Th) 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 $-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.
Is the Bitmain Antminer KS3 (8.3Th) or the Bitmain Antminer KS5 (20Th) better for noise-sensitive spaces?
The Bitmain Antminer KS5 (20Th) 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.
Bitmain Antminer KS3 (8.3Th) vs Bitmain Antminer KS5 (20Th): which fits a residential setup better?
The Bitmain Antminer KS5 (20Th) 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 Antminer KS5 (20Th): how much does the efficiency gap matter?
The Bitmain Antminer KS3 (8.3Th) runs at 384.1 J/TH while the Bitmain Antminer KS5 (20Th) runs at 150.0 J/TH — a difference of 234.1 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 61% better efficacité (384 vs 150 J/TH).