Antminer KS3 vs Bitmain Antminer S19 XP+ Hyd (279Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Bitmain Antminer S19 XP+ Hyd (279Th) |
|---|---|---|
| 9.4 TH/s | Hashrate | 279.0 TH/s |
| 3,500 W | Power Consumption | 5,301 W |
| 372.3 J/TH | Efficiency | 19.0 J/TH |
| 75 dB | Noise Level | 50 dB |
| 16.1 kg | Weight | 13.4 kg |
| 11,942 BTU/hr | BTU Output | 18,087 BTU/hr |
| 36/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS3
Bitmain Antminer S19 XP+ Hyd (279Th)
Based on BTC price of $76,908 and current network difficulty as of May 18, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer S19 XP+ Hyd (279Th) comes out ahead — it takes 5 of 6 (efficiency, hashrate, home mining score, noise level, price-performance). The standout gap is 2868% more hashrate (9.4 vs 279.0 TH/s) in the Bitmain Antminer S19 XP+ Hyd (279Th)'s favour. The Antminer KS3 holds the edge in power consumption. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Stripped to the numbers, this is how far apart the Antminer KS3 and Bitmain Antminer S19 XP+ Hyd (279Th) sit on each measurable spec:
- Bitmain Antminer S19 XP+ Hyd (279Th) 2868% more hashrate (9.4 vs 279.0 TH/s)
- Antminer KS3 34% better power draw (3,500 vs 5,301 W)
- Bitmain Antminer S19 XP+ Hyd (279Th) 95% better efficiency (372.3 vs 19.0 J/TH)
- Bitmain Antminer S19 XP+ Hyd (279Th) 33% better noise (75.0 vs 50.0 dB)
- Bitmain Antminer S19 XP+ Hyd (279Th) 17% better weight (16.1 vs 13.4 kg)
- Bitmain Antminer S19 XP+ Hyd (279Th) 51% more heat output (11,942 vs 18,087 BTU/hr)
- Bitmain Antminer S19 XP+ Hyd (279Th) 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 S19 XP+ Hyd (279Th) |
|---|---|---|
| $8,000 | Upfront cost (MSRP) | $1,089 |
| -$8.07 | Daily net profit | -$2.85 |
| -$10,945 | Net after 1 year | -$2,129 |
| -$13,889 | Net after 2 years | -$3,168 |
| -$16,834 | Net after 3 years | -$4,208 |
| 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 S19 XP+ Hyd (279Th)Score: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S19 XP+ Hyd (279Th)19.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer KS3 or Bitmain Antminer S19 XP+ Hyd (279Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S19 XP+ Hyd (279Th) is more profitable at $-2.85/day compared to $-8.07/day for the Antminer KS3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Antminer KS3 or Bitmain Antminer S19 XP+ Hyd (279Th)?
The Bitmain Antminer S19 XP+ Hyd (279Th) is quieter at 50 dB compared to the Antminer KS3 at 75 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 S19 XP+ Hyd (279Th)?
The Bitmain Antminer S19 XP+ Hyd (279Th) 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.
How far apart are the Antminer KS3 and Bitmain Antminer S19 XP+ Hyd (279Th) on J/TH?
The Antminer KS3 runs at 372.3 J/TH while the Bitmain Antminer S19 XP+ Hyd (279Th) runs at 19.0 J/TH — a difference of 353.3 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 19.0 J/TH).