Bitmain Antminer S21 XP Hyd vs Whatsminer M63
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Hyd | Specification | Whatsminer M63 |
|---|---|---|
| 473.0 TH/s | Hashrate | 360.0 TH/s |
| 5,676 W | Power Consumption | 7,200 W |
| 12.0 J/TH | Efficiency | 20.0 J/TH |
| 50 dB | Noise Level | 50 dB |
| 12.3 kg | Weight | 27.5 kg |
| 19,367 BTU/hr | BTU Output | 24,566 BTU/hr |
| 44/100 | Home Mining Score | 44/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Bitmain Antminer S21 XP Hyd
Whatsminer M63
Based on BTC price of $76,982 and current network difficulty as of May 18, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Bitmain Antminer S21 XP Hyd edges it: 4 of 4 factors go its way (efficiency, hashrate, power consumption, price-performance). The standout gap is 40% better efficiency (12.0 vs 20.0 J/TH) in the Bitmain Antminer S21 XP Hyd's favour. Cross-check the spec deltas and operating-cost table above against your own electricity rate before deciding.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer S21 XP Hyd and Whatsminer M63 sit on each measurable spec:
- Bitmain Antminer S21 XP Hyd 31% more hashrate (473 vs 360 TH/s)
- Bitmain Antminer S21 XP Hyd 21% better power draw (5,676 vs 7,200 W)
- Bitmain Antminer S21 XP Hyd 40% better efficiency (12.0 vs 20.0 J/TH)
- Bitmain Antminer S21 XP Hyd 55% better weight (12.3 vs 27.5 kg)
- Whatsminer M63 27% more heat output (19,367 vs 24,566 BTU/hr)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer S21 XP Hyd | Metric | Whatsminer M63 |
|---|---|---|
| $5,099 | Upfront cost (MSRP) | $11,000 |
| $3.13 | Daily net profit | -$4.53 |
| -$3,955 | Net after 1 year | -$12,652 |
| -$2,811 | Net after 2 years | -$14,304 |
| -$1,667 | Net after 3 years | -$15,957 |
| Takes ~4.5 years to pay back at current rates | Payback period | Does not pay back at current rates (negative daily profit) |
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
Bitmain Antminer S21 XP Hyd$7.66/day higher profit at current rates.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitmain Antminer S21 XP Hyd12.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer S21 XP Hyd vs Whatsminer M63: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 XP Hyd is more profitable at $3.13/day compared to $-4.53/day for the Whatsminer M63. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer S21 XP Hyd vs Whatsminer M63: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
Which is better for home mining, the Bitmain Antminer S21 XP Hyd or Whatsminer M63?
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 S21 XP Hyd and Whatsminer M63?
The Bitmain Antminer S21 XP Hyd runs at 12.0 J/TH while the Whatsminer M63 runs at 20.0 J/TH — a difference of 8.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 40% better efficiency (12.0 vs 20.0 J/TH).