Antminer KS3 vs Bitmain Antminer S19j Pro (100Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Bitmain Antminer S19j Pro (100Th) |
|---|---|---|
| 9.4 TH/s | Hashrate | 100.0 TH/s |
| 3,500 W | Power Consumption | 3,050 W |
| 372.3 J/TH | Efficiency | 30.5 J/TH |
| 75 dB | Noise Level | — |
| 16.1 kg | Weight | 13,200.0 kg |
| 11,942 BTU/hr | BTU Output | 10,407 BTU/hr |
| 36/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS3
Bitmain Antminer S19j Pro (100Th)
Based on BTC price of $79,027 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S19j Pro (100Th) edges it: 4 of 6 factors go its way (efficiency, hashrate, power consumption, price-performance). Where it pulls away hardest is 92% better efficiency (372.3 vs 30.5 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
Here is every spec where the Antminer KS3 and Bitmain Antminer S19j Pro (100Th) actually differ, with the gap quantified:
- Bitmain Antminer S19j Pro (100Th) 964% more hashrate (9.4 vs 100.0 TH/s)
- Bitmain Antminer S19j Pro (100Th) 13% better power draw (3,500 vs 3,050 W)
- Bitmain Antminer S19j Pro (100Th) 92% better efficiency (372.3 vs 30.5 J/TH)
- Antminer KS3 100% better weight (16.1 vs 13,200.0 kg)
- Antminer KS3 15% more heat output (11,942 vs 10,407 BTU/hr)
- Antminer KS3 64% more home mining score (36.0 vs 22.0)
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.
| Antminer KS3 | Metric | Bitmain Antminer S19j Pro (100Th) |
|---|---|---|
| $8,000 | Upfront cost (MSRP) | $600 |
| -$8.06 | Daily net profit | -$3.68 |
| -$10,941 | Net after 1 year | -$1,944 |
| -$13,882 | Net after 2 years | -$3,289 |
| -$16,824 | Net after 3 years | -$4,633 |
| 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 S19j Pro (100Th)30.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer KS3 or Bitmain Antminer S19j Pro (100Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S19j Pro (100Th) is more profitable at $-3.68/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.
Antminer KS3 vs Bitmain Antminer S19j Pro (100Th): which runs at a lower noise level?
The Antminer KS3 is quieter at 75 dB compared to the Bitmain Antminer S19j Pro (100Th) 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 S19j Pro (100Th)?
The Antminer KS3 scores 36/100 on our Home Mining Score (vs 22/100 for the Bitmain Antminer S19j Pro (100Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer KS3 vs Bitmain Antminer S19j Pro (100Th): how much does the efficiency gap matter?
The Antminer KS3 runs at 372.3 J/TH while the Bitmain Antminer S19j Pro (100Th) runs at 30.5 J/TH — a difference of 341.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 92% better efficiency (372.3 vs 30.5 J/TH).