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Bitmain Antminer KS5 Pro (21Th)

Bitmain Antminer KS5 Pro (21Th)

Hashrate 21.0 TH/s Power 3,150 W Efficiency 150.0 J/TH
VS
Iceriver KS3

Iceriver KS3

Hashrate 8.0 TH/s Power 3,200 W Efficiency 400.0 J/TH

Bitmain Antminer KS5 Pro (21Th) vs Iceriver KS3

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

Specifications Comparison

Bitmain Antminer KS5 Pro (21Th) Specification Iceriver KS3
21.0 TH/s Hashrate 8.0 TH/s
3,150 W Power Consumption 3,200 W
150.0 J/TH Efficiency 400.0 J/TH
75 dB Noise Level 75 dB
15.8 kg Weight 13.5 kg
10,748 BTU/hr BTU Output 10,918 BTU/hr
36/100 Home Mining Score 36/100
Release Year
KHeavyHash Algorithm KHeavyHash
Bitmain Manufacturer IceRiver

Profitability Comparison

$/kWh

Bitmain Antminer KS5 Pro (21Th)

Daily Revenue 0.00000910 BTC $0.67
Daily Electricity -$7.56
Daily Profit -$6.89
Monthly -$206.59
Yearly -$2,513.45

Iceriver KS3

Daily Revenue 0.00000347 BTC $0.26
Daily Electricity -$7.68
Daily Profit -$7.42
Monthly -$222.70
Yearly -$2,709.51

Based on BTC price of $74,032 and current network difficulty as of Mar 16, 2026. Actual results vary.

Verdict

Based on specs, the Bitmain Antminer KS5 Pro (21Th) offers 63% better efficiency at 150.0 J/TH compared to the Iceriver KS3 at 400.0 J/TH. This directly impacts daily operating costs and long-term profitability.

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Tie

Both miners are equally suitable for home use.

Best for Efficiency

Bitmain Antminer KS5 Pro (21Th)

150.0 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitmain Antminer KS5 Pro (21Th) or Iceriver KS3 more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer KS5 Pro (21Th) is more profitable at $-6.89/day compared to $-7.42/day for the Iceriver KS3. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Bitmain Antminer KS5 Pro (21Th) or Iceriver KS3?

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

Which is better for home mining, the Bitmain Antminer KS5 Pro (21Th) or Iceriver KS3?

Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.

What is the efficiency difference between Bitmain Antminer KS5 Pro (21Th) and Iceriver KS3?

The Bitmain Antminer KS5 Pro (21Th) runs at 150.0 J/TH while the Iceriver KS3 runs at 400.0 J/TH — a difference of 250.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.