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Antminer S21 XP

Antminer S21 XP

Hashrate 270.0 TH/s Power 3,645 W Efficiency 13.5 J/TH
VS
Holic H22

Holic H22

Hashrate 22.0 TH/s Power 1,700 W Efficiency 77.3 J/TH

Antminer S21 XP vs Holic H22

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

Specifications Comparison

Antminer S21 XP Specification Holic H22
270.0 TH/s Hashrate 22.0 TH/s
3,645 W Power Consumption 1,700 W
13.5 J/TH Efficiency 77.3 J/TH
75 dB Noise Level
15.4 kg Weight
12,437 BTU/hr BTU Output 5,800 BTU/hr
30/100 Home Mining Score 28/100
Release Year
SHA-256 Algorithm SHA-256
Bitmain Manufacturer Holic

Profitability Comparison

$/kWh

Antminer S21 XP

Daily Revenue 0.00012813 BTC $10.15
Daily Electricity -$8.75
Daily Profit $1.40
Monthly $42.10
Yearly $512.16

Holic H22

Daily Revenue 0.00001044 BTC $0.83
Daily Electricity -$4.08
Daily Profit -$3.25
Monthly -$97.59
Yearly -$1,187.30

Based on BTC price of $79,227 and current network difficulty as of May 15, 2026. Actual results vary.

Verdict

Based on our multi-factor analysis, the Antminer S21 XP wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 1127% more hashrate (270.0 vs 22.0 TH/s). The Holic H22 claws back ground on power consumption. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.

Winner: Antminer S21 XP — wins on 4 of 5 factors

Spec Deltas

The Antminer S21 XP and Holic H22 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":

  • Antminer S21 XP 1127% more hashrate (270.0 vs 22.0 TH/s)
  • Holic H22 53% better power draw (3,645 vs 1,700 W)
  • Antminer S21 XP 83% better efficiency (13.5 vs 77.3 J/TH)
  • Antminer S21 XP 114% more heat output (12,437 vs 5,800 BTU/hr)
  • Antminer S21 XP 7% more home mining score (30.0 vs 28.0)

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 XP Metric Holic H22
$8,200 Upfront cost (MSRP)
$1.40 Daily net profit -$3.25
-$7,688 Net after 1 year -$1,187
-$7,176 Net after 2 years -$2,375
-$6,664 Net after 3 years -$3,562
Takes ~16.0 years to pay back at current rates 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

Antminer S21 XP

$4.66/day higher profit at current rates.

Best for Home Mining

Antminer S21 XP

Score: 30/100. 75 dB noise level.

Best for Efficiency

Antminer S21 XP

13.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Antminer S21 XP or Holic H22 more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 XP is more profitable at $1.40/day compared to $-3.25/day for the Holic H22. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Is the Antminer S21 XP or the Holic H22 better for noise-sensitive spaces?

The Antminer S21 XP is quieter at 75 dB compared to the Holic H22 at 0 dB. For home mining, lower noise levels make a significant difference in livability.

For mining at home, should I pick the Antminer S21 XP or the Holic H22?

The Antminer S21 XP scores 30/100 on our Home Mining Score (vs 28/100 for the Holic H22). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

Antminer S21 XP vs Holic H22: how much does the efficiency gap matter?

The Antminer S21 XP runs at 13.5 J/TH while the Holic H22 runs at 77.3 J/TH — a difference of 63.8 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 83% better efficiency (13.5 vs 77.3 J/TH).