Antminer Slim Edition (S9) vs StealthMiner
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer Slim Edition (S9) | Specification | StealthMiner |
|---|---|---|
| 12.0 TH/s | Hashrate | 800.0 GH/s |
| 1,100 W | Power Consumption | 18 W |
| 91.7 J/TH | Efficiency | 22.5 J/TH |
| 65 dB | Noise Level | 28 dB |
| 3.5 kg | Weight | 1.5 kg |
| 3,753 BTU/hr | BTU Output | 61 BTU/hr |
| 52/100 | Home Mining Score | 70/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| D-Central | Manufacturer | D-Central |
Profitability Comparison
Antminer Slim Edition (S9)
StealthMiner
Based on BTC price of $76,908 and current network difficulty as of May 18, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the StealthMiner wins on 4 of 6 factors (efficiency, power consumption, home mining score, noise level). Its biggest concrete edge: 98% better power draw (1,100.0 vs 18.0 W). The Antminer Slim Edition (S9) holds the edge in hashrate and price-performance. 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 Slim Edition (S9) and StealthMiner sit on each measurable spec:
- Antminer Slim Edition (S9) 1400% more hashrate (12.0 vs 0.8 TH/s)
- StealthMiner 98% better power draw (1,100.0 vs 18.0 W)
- StealthMiner 75% better efficiency (91.7 vs 22.5 J/TH)
- StealthMiner 57% better noise (65.0 vs 28.0 dB)
- StealthMiner 57% better weight (3.5 vs 1.5 kg)
- Antminer Slim Edition (S9) 6013% more heat output (3,753.2 vs 61.4 BTU/hr)
- StealthMiner 35% more home mining score (52.0 vs 70.0)
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 Slim Edition (S9) | Metric | StealthMiner |
|---|---|---|
| $350 | Upfront cost (MSRP) | $199 |
| -$2.22 | Daily net profit | -$0.01 |
| -$1,159 | Net after 1 year | -$204 |
| -$1,967 | Net after 2 years | -$210 |
| -$2,776 | Net after 3 years | -$215 |
| 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
StealthMinerScore: 70/100. 28 dB noise level.
Best for Efficiency
StealthMiner22.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer Slim Edition (S9) or StealthMiner more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the StealthMiner is more profitable at $-0.01/day compared to $-2.22/day for the Antminer Slim Edition (S9). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer Slim Edition (S9) vs StealthMiner: which runs at a lower noise level?
The StealthMiner is quieter at 28 dB compared to the Antminer Slim Edition (S9) at 65 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer Slim Edition (S9) vs StealthMiner: which fits a residential setup better?
The StealthMiner scores 70/100 on our Home Mining Score (vs 52/100 for the Antminer Slim Edition (S9)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer Slim Edition (S9) vs StealthMiner: how much does the efficiency gap matter?
The Antminer Slim Edition (S9) runs at 91.7 J/TH while the StealthMiner runs at 22.5 J/TH — a difference of 69.2 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 75% better efficiency (91.7 vs 22.5 J/TH).