Bitmain Antminer S21 vs MicroBT Whatsminer M60S

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

★ Bitmain Antminer S21 is more efficient for Bitcoin mining

Verdict: Bitmain Antminer S21 vs MicroBT Whatsminer M60S

For Bitcoin mining, the Bitmain Antminer S21 is the more efficient choice, delivering roughly 6% more hashrate per watt than the MicroBT Whatsminer M60S. The MicroBT Whatsminer M60S draws 59W less, cutting electricity costs by about $36/year at $0.07/kWh. Bottom line: if power efficiency is your priority, the Bitmain Antminer S21 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 MicroBT Whatsminer M60S
Type ASIC ASIC
Algorithm
Hashrate (BTC) 200 TH/s 186 TH/s
Power Draw 3500 W 3441 W
Efficiency 17.5 J/TH 18.5 J/TH
Supported Coins BTC, BCH BTC, BCH
Release Year N/A N/A

Hashrate & Efficiency per Coin

Coin Bitmain S21 HR MicroBT M60S HR Power A Power B More Efficient
BTC 200 TH/s 186 TH/s 3500 W 3441 W Antminer ✓
BCH 200 TH/s 186 TH/s 3500 W 3441 W Antminer ✓

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 MicroBT Whatsminer M60S Difference
$0.04/kWh $3.36 $3.30 +$0.06 (B cheaper)
$0.06/kWh $5.04 $4.96 +$0.08 (B cheaper)
$0.07/kWh $5.88 $5.78 +$0.10 (B cheaper)
$0.1/kWh $8.40 $8.26 +$0.14 (B cheaper)
$0.12/kWh $10.08 $9.91 +$0.17 (B cheaper)
$0.15/kWh $12.60 $12.39 +$0.21 (B cheaper)
$0.2/kWh $16.80 $16.52 +$0.28 (B cheaper)

Pros & Cons

Bitmain Antminer S21

  • 200 TH/s — strong absolute hashrate for Bitcoin mining
  • Lower acquisition cost than the S21 Pro (~$3,000–3,500)
  • Same chassis and power infrastructure as S21 Pro
  • Less efficient than S21 Pro (17.5 vs 15 J/TH)
  • 3,500 W power draw still requires industrial setup
  • Noise level identical to Pro (75 dB)

MicroBT Whatsminer M60S

  • Lower cost-per-TH/s than comparable Bitmain S21 models
  • Proven reliability across large-scale mining deployments
  • Immersion-cooling compatible variant available (M60S+)
  • Less efficient than S21 Pro at 18.5 J/TH
  • Smaller firmware ecosystem than Antminer
  • Fewer authorised resellers outside Asia

Frequently Asked Questions

Is the Bitmain Antminer S21 or MicroBT Whatsminer M60S more profitable for Bitcoin mining?

Based on hashrate-per-watt efficiency, the Bitmain Antminer S21 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 and MicroBT Whatsminer M60S?

For Bitcoin mining, the Bitmain Antminer S21 draws 3500 W while the MicroBT Whatsminer M60S draws 3441 W. The MicroBT Whatsminer M60S uses 59 W less power, which at $0.07/kWh saves ~$36 per year in electricity.

Can both the Bitmain Antminer S21 and MicroBT Whatsminer M60S 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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