Bitmain Antminer S21 XP Hyd vs Bitmain Antminer S7
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Hyd | Specification | Bitmain Antminer S7 |
|---|---|---|
| 473.0 TH/s | Hashrate | 4.7 TH/s |
| 5,676 W | Power Consumption | 1,293 W |
| 12.0 J/TH | Efficiency | 273.4 J/TH |
| 50 dB | Noise Level | — |
| 12.3 kg | Weight | 3,900.0 kg |
| 19,367 BTU/hr | BTU Output | 4,412 BTU/hr |
| 44/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S21 XP Hyd
Bitmain Antminer S7
Based on BTC price of $79,086 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitmain Antminer S21 XP Hyd wins on 4 of 5 factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 9900% more hashrate (473.0 vs 4.7 TH/s). The Bitmain Antminer S7 claws back ground on power consumption. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
Here is every spec where the Bitmain Antminer S21 XP Hyd and Bitmain Antminer S7 actually differ, with the gap quantified:
- Bitmain Antminer S21 XP Hyd 9900% more hashrate (473.0 vs 4.7 TH/s)
- Bitmain Antminer S7 77% better power draw (5,676 vs 1,293 W)
- Bitmain Antminer S21 XP Hyd 96% better efficiency (12.0 vs 273.4 J/TH)
- Bitmain Antminer S21 XP Hyd 100% better weight (12.3 vs 3,900.0 kg)
- Bitmain Antminer S21 XP Hyd 339% more heat output (19,367 vs 4,412 BTU/hr)
- Bitmain Antminer S21 XP Hyd 42% more home mining score (44.0 vs 31.0)
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.
| Bitmain Antminer S21 XP Hyd | Metric | Bitmain Antminer S7 |
|---|---|---|
| $5,099 | Upfront cost (MSRP) | — |
| $3.59 | Daily net profit | -$2.93 |
| -$3,788 | Net after 1 year | -$1,070 |
| -$2,477 | Net after 2 years | -$2,140 |
| -$1,166 | Net after 3 years | -$3,210 |
| Takes ~3.9 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
Bitmain Antminer S21 XP Hyd$6.52/day higher profit at current rates.
Best for Home Mining
Bitmain Antminer S21 XP HydScore: 44/100. 50 dB noise level.
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 Bitmain Antminer S7: 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 $3.59/day compared to $-2.93/day for the Bitmain Antminer S7. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S21 XP Hyd or the Bitmain Antminer S7 better for noise-sensitive spaces?
The Bitmain Antminer S21 XP Hyd is quieter at 50 dB compared to the Bitmain Antminer S7 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Bitmain Antminer S21 XP Hyd or Bitmain Antminer S7?
The Bitmain Antminer S21 XP Hyd scores 44/100 on our Home Mining Score (vs 31/100 for the Bitmain Antminer S7). 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 S21 XP Hyd and Bitmain Antminer S7?
The Bitmain Antminer S21 XP Hyd runs at 12.0 J/TH while the Bitmain Antminer S7 runs at 273.4 J/TH — a difference of 261.4 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 96% better efficiency (12.0 vs 273.4 J/TH).