Bitmain Antminer S19 Pro+ Hyd. (191Th)

Hashrate 191.0 TH/s Power 5,253 W Efficiency 27.5 J/TH

Antminer S21 Hydro

Hashrate 335.0 TH/s Power 5,360 W Efficiency 16.0 J/TH

Bitmain Antminer S19 Pro+ Hyd. (191Th) vs Antminer S21 Hydro

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

Specifications Comparison

Bitmain Antminer S19 Pro+ Hyd. (191Th)	Specification	Antminer S21 Hydro
191.0 TH/s	Hashrate	335.0 TH/s
5,253 W	Power Consumption	5,360 W
27.5 J/TH	Efficiency	16.0 J/TH
—	Noise Level	50 dB
15.2 kg	Weight	15.8 kg
17,923 BTU/hr	BTU Output	18,288 BTU/hr
16/100	Home Mining Score	44/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
Bitmain	Manufacturer	Bitmain

Profitability Comparison

Electricity Rate:

$/kWh

Bitmain Antminer S19 Pro+ Hyd. (191Th)

Daily Revenue 0.00008855 BTC $6.86

Daily Electricity -$12.61

Daily Profit -$5.75

Monthly -$172.44

Yearly -$2,098.00

Antminer S21 Hydro

Daily Revenue 0.00015531 BTC $12.03

Daily Electricity -$12.86

Daily Profit -$0.83

Monthly -$25.00

Yearly -$304.18

Based on BTC price of $77,461 and current network difficulty as of Apr 25, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Antminer S21 Hydro wins on 4 of 6 factors (efficiency, hashrate, home mining score, noise level). The Bitmain Antminer S19 Pro+ Hyd. (191Th) holds the edge in power consumption and price-performance. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.

Winner: Antminer S21 Hydro — wins on 4 of 6 factors

Best For...

Best for Profitability

Tie

Both miners produce similar daily profit.

Best for Home Mining

Antminer S21 Hydro

Score: 44/100. 50 dB noise level.

Best for Efficiency

Antminer S21 Hydro

16.0 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitmain Antminer S19 Pro+ Hyd. (191Th) or Antminer S21 Hydro more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 Hydro is more profitable at $-0.83/day compared to $-5.75/day for the Bitmain Antminer S19 Pro+ Hyd. (191Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Bitmain Antminer S19 Pro+ Hyd. (191Th) or Antminer S21 Hydro?

The Antminer S21 Hydro is quieter at 50 dB compared to the Bitmain Antminer S19 Pro+ Hyd. (191Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.

Which is better for home mining, the Bitmain Antminer S19 Pro+ Hyd. (191Th) or Antminer S21 Hydro?

The Antminer S21 Hydro scores 44/100 on our Home Mining Score (vs 16/100 for the Bitmain Antminer S19 Pro+ Hyd. (191Th)). 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 Bitmain Antminer S19 Pro+ Hyd. (191Th) and Antminer S21 Hydro?

The Bitmain Antminer S19 Pro+ Hyd. (191Th) runs at 27.5 J/TH while the Antminer S21 Hydro runs at 16.0 J/TH — a difference of 11.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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