Antminer S21 vs Bitmain Antminer S5
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 | Specification | Bitmain Antminer S5 |
|---|---|---|
| 200.0 TH/s | Taux de hachage | 1.2 TH/s |
| 3,500 W | Consommation électrique | 590 W |
| 17.5 J/TH | Efficiency | 510.8 J/TH |
| 75 dB | Niveau de bruit | — |
| 14.6 kg | Weight | — |
| 11,942 BTU/hr | BTU Output | 2,013 BTU/hr |
| 36/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S21
Bitmain Antminer S5
Based on BTC price of $62,980 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Antminer S21 l'emporte sur 4 des 5 facteurs (efficacité, hashrate, score de minage domestique, niveau sonore). The standout gap is 17216% more hashrate (200.0 vs 1.2 TH/s) in the Antminer S21's favour. The Bitmain Antminer S5 holds the edge in consommation électrique. 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 S21 and Bitmain Antminer S5 sit on each measurable spec:
- Antminer S21 17216% more hashrate (200.0 vs 1.2 TH/s)
- Bitmain Antminer S5 83% better power draw (3,500 vs 590 W)
- Antminer S21 97% better efficacité (17.5 vs 510.8 J/TH)
- Antminer S21 493% more heat output (11,942 vs 2,013 BTU/hr)
- Antminer S21 20% more score de minage domestique (36.0 vs 30.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Antminer S21 | Metric | Bitmain Antminer S5 |
|---|---|---|
| $5,500 | Upfront cost (MSRP) | — |
| -$2.70 | Daily net profit | -$1.38 |
| -$6,486 | Net after 1 year | -$505 |
| -$7,472 | Net after 2 years | -$1,010 |
| -$8,458 | Net after 3 years | -$1,514 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
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
Antminer S21Score: 36/100. 75 dB noise level.
Best for Efficiency
Antminer S2117.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer S21 or the Bitmain Antminer S5?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S5 is more profitable at $-1.38/day compared to $-2.70/day for the Antminer S21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer S21 vs Bitmain Antminer S5: which runs at a lower noise level?
The Antminer S21 is quieter at 75 dB compared to the Bitmain Antminer S5 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S21 or Bitmain Antminer S5?
The Antminer S21 scores 36/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S5). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Antminer S21 vs Bitmain Antminer S5: how much does the efficiency gap matter?
The Antminer S21 runs at 17.5 J/TH while the Bitmain Antminer S5 runs at 510.8 J/TH — a difference of 493.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 97% better efficacité (17.5 vs 510.8 J/TH).