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Antminer S21 Pro

Antminer S21 Pro

Hashrate 234.0 TH/s Power 3,510 W Efficiency 15.0 J/TH
VS
DragonMint T1

DragonMint T1

Hashrate 16.0 TH/s Power 1,480 W Efficiency 92.5 J/TH

Antminer S21 Pro vs DragonMint T1

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

Specifications Comparison

Antminer S21 Pro Specification DragonMint T1
234.0 TH/s Hashrate 16.0 TH/s
3,510 W Power Consumption 1,480 W
15.0 J/TH Efficiency 92.5 J/TH
75 dB Noise Level 75 dB
15.0 kg Weight 6.0 kg
11,976 BTU/hr BTU Output 5,050 BTU/hr
30/100 Home Mining Score 48/100
Release Year
SHA-256 Algorithm SHA-256
Bitmain Manufacturer Halong Mining

Profitability Comparison

$/kWh

Antminer S21 Pro

Daily Revenue 0.00010768 BTC $8.41
Daily Electricity -$8.42
Daily Profit -$0.02
Monthly -$0.51
Yearly -$6.24

DragonMint T1

Daily Revenue 0.00000736 BTC $0.57
Daily Electricity -$3.55
Daily Profit -$2.98
Monthly -$89.32
Yearly -$1,086.67

Based on BTC price of $78,071 and current network difficulty as of May 17, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Antminer S21 Pro wins on 2 of 4 factors (efficiency, hashrate). Its biggest concrete edge: 1363% more hashrate (234.0 vs 16.0 TH/s). The DragonMint T1 holds the edge in power consumption and home mining score. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.

Winner: Antminer S21 Pro — wins on 2 of 4 factors

Spec Deltas

Stripped to the numbers, this is how far apart the Antminer S21 Pro and DragonMint T1 sit on each measurable spec:

  • Antminer S21 Pro 1363% more hashrate (234.0 vs 16.0 TH/s)
  • DragonMint T1 58% better power draw (3,510 vs 1,480 W)
  • Antminer S21 Pro 84% better efficiency (15.0 vs 92.5 J/TH)
  • DragonMint T1 60% better weight (15.0 vs 6.0 kg)
  • Antminer S21 Pro 137% more heat output (11,976 vs 5,050 BTU/hr)
  • DragonMint T1 60% more home mining score (30.0 vs 48.0)

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.

Antminer S21 Pro Metric DragonMint T1
$6,800 Upfront cost (MSRP)
-$0.02 Daily net profit -$2.98
-$6,806 Net after 1 year -$1,087
-$6,812 Net after 2 years -$2,173
-$6,819 Net after 3 years -$3,260
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

Tie

Both miners produce similar daily profit.

Best for Home Mining

DragonMint T1

Score: 48/100. 75 dB noise level.

Best for Efficiency

Antminer S21 Pro

15.0 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Antminer S21 Pro vs DragonMint T1: which one earns more per day?

At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Pro is more profitable at $-0.02/day compared to $-2.98/day for the DragonMint T1. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Antminer S21 Pro vs DragonMint T1: which runs at a lower noise level?

Both miners have similar noise levels. Check the specs table above for exact decibel readings.

Which is better for home mining, the Antminer S21 Pro or DragonMint T1?

The DragonMint T1 scores 48/100 on our Home Mining Score (vs 30/100 for the Antminer S21 Pro). 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 Pro and DragonMint T1?

The Antminer S21 Pro runs at 15.0 J/TH while the DragonMint T1 runs at 92.5 J/TH — a difference of 77.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 84% better efficiency (15.0 vs 92.5 J/TH).