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Antminer S21

Antminer S21

Hashrate 200.0 TH/s Power 3,500 W Efficiency 17.5 J/TH
VS

Auradine Teraflux AI3680

Hashrate 375.0 TH/s Power 5,625 W Efficiency 15.0 J/TH

Antminer S21 vs Auradine Teraflux AI3680

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

Antminer S21 Specification Auradine Teraflux AI3680
200.0 TH/s Hashrate 375.0 TH/s
3,500 W Power Consumption 5,625 W
17.5 J/TH Efficiency 15.0 J/TH
75 dB Noise Level 55 dB
14.6 kg Weight —
11,942 BTU/hr BTU Output 19,193 BTU/hr
36/100 Home Mining Score —
— Release Year —
SHA-256 Algorithm SHA-256
Bitmain Manufacturer Auradine

Profitability Comparison

$/kWh

Antminer S21

Daily Revenue 0.00009047 BTC $6.43
Daily Electricity -$8.40
Daily Profit -$1.97
Monthly -$59.06
Yearly -$718.53

Auradine Teraflux AI3680

Daily Revenue 0.00016964 BTC $12.06
Daily Electricity -$13.50
Daily Profit -$1.44
Monthly -$43.23
Yearly -$526.00

Based on BTC price of $71,086 and current network difficulty as of Apr 9, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Auradine Teraflux AI3680 wins on 3 of 5 factors (efficiency, hashrate, noise level). The Antminer S21 holds the edge in power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: Auradine Teraflux AI3680 — wins on 3 of 5 factors

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Antminer S21

Score: 36/100. 75 dB noise level.

Best for Efficiency

Auradine Teraflux AI3680

15.0 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Antminer S21 or Auradine Teraflux AI3680 more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Auradine Teraflux AI3680 is more profitable at $-1.44/day compared to $-1.97/day for the Antminer S21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Antminer S21 or Auradine Teraflux AI3680?

The Auradine Teraflux AI3680 is quieter at 55 dB compared to the Antminer S21 at 75 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the Antminer S21 or Auradine Teraflux AI3680?

The Antminer S21 scores 36/100 on our Home Mining Score (vs 0/100 for the Auradine Teraflux AI3680). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

What is the efficiency difference between Antminer S21 and Auradine Teraflux AI3680?

The Antminer S21 runs at 17.5 J/TH while the Auradine Teraflux AI3680 runs at 15.0 J/TH — a difference of 2.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

Compare Antminer S21 with...

Compare Auradine Teraflux AI3680 with...

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