Bitmain Antminer V9 (4Th) vs StealthMiner
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer V9 (4Th) | Specification | StealthMiner |
|---|---|---|
| 4.0 TH/s | Hashrate | 800.0 GH/s |
| 1,027 W | Power Consumption | 18 W |
| 256.8 J/TH | Efficiency | 22.5 J/TH |
| — | Noise Level | 28 dB |
| 3,050.0 kg | Weight | 1.5 kg |
| 3,504 BTU/hr | BTU Output | 61 BTU/hr |
| 31/100 | Home Mining Score | 70/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer V9 (4Th)
StealthMiner
Based on BTC price of $79,071 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the StealthMiner, which leads on 4 of 5 weighted factors (efficiency, power consumption, home mining score, noise level). Its biggest concrete edge: 98% better power draw (1,027.0 vs 18.0 W). That said, the Bitmain Antminer V9 (4Th) isn't beaten everywhere — it still wins hashrate. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer V9 (4Th) and StealthMiner sit on each measurable spec:
- Bitmain Antminer V9 (4Th) 400% more hashrate (4.0 vs 0.8 TH/s)
- StealthMiner 98% better power draw (1,027.0 vs 18.0 W)
- StealthMiner 91% better efficiency (256.8 vs 22.5 J/TH)
- StealthMiner 100% better weight (3,050.0 vs 1.5 kg)
- Bitmain Antminer V9 (4Th) 5607% more heat output (3,504.1 vs 61.4 BTU/hr)
- StealthMiner 126% more home mining score (31.0 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.
| Bitmain Antminer V9 (4Th) | Metric | StealthMiner |
|---|---|---|
| — | Upfront cost (MSRP) | $199 |
| -$2.31 | Daily net profit | -$0.01 |
| -$845 | Net after 1 year | -$204 |
| -$1,690 | Net after 2 years | -$209 |
| -$2,535 | Net after 3 years | -$213 |
| — | 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 Bitmain Antminer V9 (4Th) 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 $-2.31/day for the Bitmain Antminer V9 (4Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer V9 (4Th) or the StealthMiner better for noise-sensitive spaces?
The StealthMiner is quieter at 28 dB compared to the Bitmain Antminer V9 (4Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer V9 (4Th) or StealthMiner?
The StealthMiner scores 70/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer V9 (4Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer V9 (4Th) and StealthMiner on J/TH?
The Bitmain Antminer V9 (4Th) runs at 256.8 J/TH while the StealthMiner runs at 22.5 J/TH — a difference of 234.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 91% better efficiency (256.8 vs 22.5 J/TH).