Bitmain Antminer S21 XP Hyd vs Canaan Avalon A1566

Mining profitability comparison for Bitcoin (BTC), Bitcoin Cash (BCH)

★ Bitmain Antminer S21 XP Hyd is more efficient for Bitcoin mining

Verdict: Bitmain Antminer S21 XP Hyd vs Canaan Avalon A1566

For Bitcoin mining, the Bitmain Antminer S21 XP Hyd is the more efficient choice, delivering roughly 55% more hashrate per watt than the Canaan Avalon A1566. The Canaan Avalon A1566 draws 2246W less, cutting electricity costs by about $1377/year at $0.07/kWh. Bottom line: if power efficiency is your priority, the Bitmain Antminer S21 XP Hyd is the stronger pick — but confirm with your real electricity rate and current hardware prices below, since acquisition cost ultimately drives ROI.

Specifications

Spec Bitmain Antminer S21 XP Hyd Canaan Avalon A1566
Type ASIC ASIC
Algorithm
Hashrate (BTC) 473 TH/s 185 TH/s
Power Draw 5676 W 3430 W
Efficiency 12 J/TH 18.5 J/TH
Supported Coins BTC, BCH BTC, BCH
Release Year N/A N/A

Hashrate & Efficiency per Coin

Coin Bitmain Hyd HR Canaan A1566 HR Power A Power B More Efficient
BTC 473 TH/s 185 TH/s 5676 W 3430 W XP ✓
BCH 473 TH/s 185 TH/s 5676 W 3430 W XP ✓

Daily Electricity Cost at Different Rates

Electricity cost only (not including coin revenue). Lower is better for any given rate.

Electricity Rate Bitmain Antminer S21 XP Hyd Canaan Avalon A1566 Difference
$0.04/kWh $5.45 $3.29 +$2.16 (B cheaper)
$0.06/kWh $8.17 $4.94 +$3.23 (B cheaper)
$0.07/kWh $9.54 $5.76 +$3.77 (B cheaper)
$0.1/kWh $13.62 $8.23 +$5.39 (B cheaper)
$0.12/kWh $16.35 $9.88 +$6.47 (B cheaper)
$0.15/kWh $20.43 $12.35 +$8.09 (B cheaper)
$0.2/kWh $27.24 $16.46 +$10.78 (B cheaper)

Pros & Cons

Bitmain Antminer S21 XP Hyd

  • Highest single-unit SHA-256 hashrate available (473 TH/s)
  • Same 12 J/TH efficiency as the air-cooled S21 XP
  • Near-silent operation (~45 dB) — noise managed by the liquid loop, not fans
  • Requires Bitmain-compatible Liquid Distribution Unit (LDU) — significant extra cost
  • 5,676 W draw demands serious electrical infrastructure (25+ A at 220 V)
  • High acquisition cost (~$10,000–$14,000 per unit) limits accessibility

Canaan Avalon A1566

  • Manufacturer diversity — an alternative to Bitmain/MicroBT duopoly
  • Competitive efficiency at 18.5 J/TH
  • Strong track record for reliability in large-scale deployments
  • Smaller firmware and third-party support ecosystem
  • Fewer authorised resellers outside Asia
  • Slightly lower absolute hashrate than the S21 (185 vs 200 TH/s)

Frequently Asked Questions

Is the Bitmain Antminer S21 XP Hyd or Canaan Avalon A1566 more profitable for Bitcoin mining?

Based on hashrate-per-watt efficiency, the Bitmain Antminer S21 XP Hyd is more efficient for Bitcoin mining. However, actual profitability depends on your electricity cost, hardware acquisition price, and coin price — use the live calculator for exact numbers.

What is the power consumption difference between the Bitmain Antminer S21 XP Hyd and Canaan Avalon A1566?

For Bitcoin mining, the Bitmain Antminer S21 XP Hyd draws 5676 W while the Canaan Avalon A1566 draws 3430 W. The Canaan Avalon A1566 uses 2246 W less power, which at $0.07/kWh saves ~$1377 per year in electricity.

Can both the Bitmain Antminer S21 XP Hyd and Canaan Avalon A1566 mine the same coins?

Yes — both units can mine Bitcoin (BTC) and Bitcoin Cash (BCH). You can switch between these coins with a simple pool configuration change.

Which unit has a better ROI?

ROI depends on hardware acquisition price, electricity cost, and coin price trajectory. The more efficient unit (better J/TH or hashrate per watt) will generally have a lower operating cost per coin mined, but the absolute ROI timeline is determined by the purchase price. Always model both units in the MiningReturns calculator with your specific electricity rate and current market prices.

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