Antminer KS3 vs Bitmain Bitcoin Miner S19j XP
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Bitmain Bitcoin Miner S19j XP |
|---|---|---|
| 9.4 TH/s | Hashrate | 151.0 TH/s |
| 3,500 W | Power Consumption | 3,247 W |
| 372.3 J/TH | Efficiency | 21.5 J/TH |
| 75 dB | Noise Level | — |
| 16.1 kg | Weight | — |
| 11,942 BTU/hr | BTU Output | 11,079 BTU/hr |
| 36/100 | Home Mining Score | 22/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS3
Bitmain Bitcoin Miner S19j XP
Based on BTC price of $79,027 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Bitcoin Miner S19j XP, which leads on 4 of 6 weighted factors (efficiency, hashrate, power consumption, price-performance). Its biggest concrete edge: 94% better efficiency (372.3 vs 21.5 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
The Antminer KS3 and Bitmain Bitcoin Miner S19j XP diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Bitcoin Miner S19j XP 1506% more hashrate (9.4 vs 151.0 TH/s)
- Bitmain Bitcoin Miner S19j XP 7% better power draw (3,500 vs 3,247 W)
- Bitmain Bitcoin Miner S19j XP 94% better efficiency (372.3 vs 21.5 J/TH)
- Antminer KS3 8% more heat output (11,942 vs 11,079 BTU/hr)
- Antminer KS3 64% more home mining score (36.0 vs 22.0)
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 Bitcoin Miner S19j XP |
|---|---|---|
| $8,000 | Upfront cost (MSRP) | $999 |
| -$8.06 | Daily net profit | -$2.30 |
| -$10,941 | Net after 1 year | -$1,839 |
| -$13,882 | Net after 2 years | -$2,679 |
| -$16,824 | Net after 3 years | -$3,519 |
| 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 Bitcoin Miner S19j XP21.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer KS3 or Bitmain Bitcoin Miner S19j XP more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Bitcoin Miner S19j XP is more profitable at $-2.30/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.
Is the Antminer KS3 or the Bitmain Bitcoin Miner S19j XP better for noise-sensitive spaces?
The Antminer KS3 is quieter at 75 dB compared to the Bitmain Bitcoin Miner S19j XP at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer KS3 vs Bitmain Bitcoin Miner S19j XP: which fits a residential setup better?
The Antminer KS3 scores 36/100 on our Home Mining Score (vs 22/100 for the Bitmain Bitcoin Miner S19j XP). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Antminer KS3 and Bitmain Bitcoin Miner S19j XP on J/TH?
The Antminer KS3 runs at 372.3 J/TH while the Bitmain Bitcoin Miner S19j XP runs at 21.5 J/TH — a difference of 350.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 94% better efficiency (372.3 vs 21.5 J/TH).