Antminer KS3 vs Bitmain Antminer S21e Hyd (332Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Bitmain Antminer S21e Hyd (332Th) |
|---|---|---|
| 9.4 TH/s | Hashrate | 332.0 TH/s |
| 3,500 W | Power Consumption | 5,644 W |
| 372.3 J/TH | Efficiency | 17.0 J/TH |
| 75 dB | Noise Level | 55 dB |
| 16.1 kg | Weight | 12.8 kg |
| 11,942 BTU/hr | BTU Output | 19,257 BTU/hr |
| 36/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS3
Bitmain Antminer S21e Hyd (332Th)
Based on BTC price of $79,257 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21e Hyd (332Th) wins on 5 of 6 factors (efficiency, hashrate, home mining score, noise level, price-performance). Where it pulls away hardest is 3432% more hashrate (9.4 vs 332.0 TH/s). The Antminer KS3 claws back ground on power consumption. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer KS3 and Bitmain Antminer S21e Hyd (332Th) sit on each measurable spec:
- Bitmain Antminer S21e Hyd (332Th) 3432% more hashrate (9.4 vs 332.0 TH/s)
- Antminer KS3 38% better power draw (3,500 vs 5,644 W)
- Bitmain Antminer S21e Hyd (332Th) 95% better efficiency (372.3 vs 17.0 J/TH)
- Bitmain Antminer S21e Hyd (332Th) 27% better noise (75.0 vs 55.0 dB)
- Bitmain Antminer S21e Hyd (332Th) 20% better weight (16.1 vs 12.8 kg)
- Bitmain Antminer S21e Hyd (332Th) 61% more heat output (11,942 vs 19,257 BTU/hr)
- Bitmain Antminer S21e Hyd (332Th) 22% more home mining score (36.0 vs 44.0)
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 S21e Hyd (332Th) |
|---|---|---|
| $8,000 | Upfront cost (MSRP) | $1,799 |
| -$8.05 | Daily net profit | -$1.06 |
| -$10,937 | Net after 1 year | -$2,185 |
| -$13,874 | Net after 2 years | -$2,572 |
| -$16,811 | Net after 3 years | -$2,958 |
| 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 S21e Hyd (332Th)Score: 44/100. 55 dB noise level.
Best for Efficiency
Bitmain Antminer S21e Hyd (332Th)17.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer KS3 or Bitmain Antminer S21e Hyd (332Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21e Hyd (332Th) is more profitable at $-1.06/day compared to $-8.05/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 S21e Hyd (332Th) better for noise-sensitive spaces?
The Bitmain Antminer S21e Hyd (332Th) is quieter at 55 dB compared to the Antminer KS3 at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer KS3 vs Bitmain Antminer S21e Hyd (332Th): which fits a residential setup better?
The Bitmain Antminer S21e Hyd (332Th) scores 44/100 on our Home Mining Score (vs 36/100 for the Antminer KS3). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer KS3 vs Bitmain Antminer S21e Hyd (332Th): how much does the efficiency gap matter?
The Antminer KS3 runs at 372.3 J/TH while the Bitmain Antminer S21e Hyd (332Th) runs at 17.0 J/TH — a difference of 355.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 95% better efficiency (372.3 vs 17.0 J/TH).