Antminer KS3 vs Bitmain Antminer S19e XP Hydro 251T
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer KS3 | Specification | Bitmain Antminer S19e XP Hydro 251T |
|---|---|---|
| 9.4 TH/s | Hashrate | 251.0 TH/s |
| 3,500 W | Power Consumption | 5,522 W |
| 372.3 J/TH | Efficiency | 22.0 J/TH |
| 75 dB | Noise Level | 50 dB |
| 16.1 kg | Weight | 12.8 kg |
| 11,942 BTU/hr | BTU Output | 18,841 BTU/hr |
| 36/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| KHeavyHash | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer KS3
Bitmain Antminer S19e XP Hydro 251T
Based on BTC price of $79,034 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitmain Antminer S19e XP Hydro 251T comes out ahead — it takes 5 of 6 (efficiency, hashrate, home mining score, noise level, price-performance). The standout gap is 2570% more hashrate (9.4 vs 251.0 TH/s) in the Bitmain Antminer S19e XP Hydro 251T's favour. 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 S19e XP Hydro 251T sit on each measurable spec:
- Bitmain Antminer S19e XP Hydro 251T 2570% more hashrate (9.4 vs 251.0 TH/s)
- Antminer KS3 37% better power draw (3,500 vs 5,522 W)
- Bitmain Antminer S19e XP Hydro 251T 94% better efficiency (372.3 vs 22.0 J/TH)
- Bitmain Antminer S19e XP Hydro 251T 33% better noise (75.0 vs 50.0 dB)
- Bitmain Antminer S19e XP Hydro 251T 20% better weight (16.1 vs 12.8 kg)
- Bitmain Antminer S19e XP Hydro 251T 58% more heat output (11,942 vs 18,841 BTU/hr)
- Bitmain Antminer S19e XP Hydro 251T 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 S19e XP Hydro 251T |
|---|---|---|
| $8,000 | Upfront cost (MSRP) | $816 |
| -$8.06 | Daily net profit | -$4.12 |
| -$10,941 | Net after 1 year | -$2,321 |
| -$13,882 | Net after 2 years | -$3,826 |
| -$16,824 | Net after 3 years | -$5,332 |
| 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 S19e XP Hydro 251TScore: 44/100. 50 dB noise level.
Best for Efficiency
Bitmain Antminer S19e XP Hydro 251T22.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer KS3 or the Bitmain Antminer S19e XP Hydro 251T?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S19e XP Hydro 251T is more profitable at $-4.12/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 S19e XP Hydro 251T: which runs at a lower noise level?
The Bitmain Antminer S19e XP Hydro 251T 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 S19e XP Hydro 251T?
The Bitmain Antminer S19e XP Hydro 251T 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 S19e XP Hydro 251T: how much does the efficiency gap matter?
The Antminer KS3 runs at 372.3 J/TH while the Bitmain Antminer S19e XP Hydro 251T runs at 22.0 J/TH — a difference of 350.3 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 22.0 J/TH).