Bitmain Antminer S11 (20.5Th) vs Nerdminer
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S11 (20.5Th) | Specification | Nerdminer |
|---|---|---|
| 20.5 TH/s | Hashrate | 50.0 KH/s |
| 1,530 W | Power Consumption | 1 W |
| 74.6 J/TH | Efficiency | 20,000,000.0 J/TH |
| — | Noise Level | — |
| 6,500.0 kg | Weight | 0.1 kg |
| 5,220 BTU/hr | BTU Output | 3 BTU/hr |
| 28/100 | Home Mining Score | 35/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S11 (20.5Th)
Nerdminer
Based on BTC price of $79,143 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S11 (20.5Th) wins on 2 of 4 factors (efficiency, hashrate). The standout gap is 40999999900% more hashrate (20.5 vs 0.0 TH/s) in the Bitmain Antminer S11 (20.5Th)'s favour. That said, the Nerdminer isn't beaten everywhere — it still wins power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer S11 (20.5Th) and Nerdminer diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S11 (20.5Th) 40999999900% more hashrate (20.5 vs 0.0 TH/s)
- Nerdminer 100% better power draw (1,530.0 vs 1.0 W)
- Bitmain Antminer S11 (20.5Th) 100% better efficiency (74.6 vs 20,000,000.0 J/TH)
- Nerdminer 100% better weight (6,500.0 vs 0.1 kg)
- Bitmain Antminer S11 (20.5Th) 153441% more heat output (5,220.4 vs 3.4 BTU/hr)
- Nerdminer 25% more home mining score (28.0 vs 35.0)
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.
| Bitmain Antminer S11 (20.5Th) | Metric | Nerdminer |
|---|---|---|
| — | Upfront cost (MSRP) | $29 |
| -$2.93 | Daily net profit | -$0.00 |
| -$1,068 | Net after 1 year | -$30 |
| -$2,136 | Net after 2 years | -$31 |
| -$3,203 | Net after 3 years | -$32 |
| — | 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
NerdminerScore: 35/100. 0 dB noise level.
Best for Efficiency
Bitmain Antminer S11 (20.5Th)74.6 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S11 (20.5Th) or the Nerdminer?
At the current BTC price and a $0.10/kWh electricity rate, the Nerdminer is more profitable at $0.00/day compared to $-2.93/day for the Bitmain Antminer S11 (20.5Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S11 (20.5Th) or Nerdminer?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Bitmain Antminer S11 (20.5Th) or the Nerdminer?
The Nerdminer scores 35/100 on our Home Mining Score (vs 28/100 for the Bitmain Antminer S11 (20.5Th)). 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 S11 (20.5Th) and Nerdminer on J/TH?
The Bitmain Antminer S11 (20.5Th) runs at 74.6 J/TH while the Nerdminer runs at 20,000,000.0 J/TH — a difference of 19,999,925.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 100% better efficiency (74.6 vs 20,000,000.0 J/TH).