Bitmain Antminer S21 XP Immersion vs Bitaxe Gamma
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Immersion | Specification | Bitaxe Gamma |
|---|---|---|
| 300.0 TH/s | Taux de hachage | 1,200.0 GH/s |
| 4,050 W | Consommation électrique | 15 W |
| 13.5 J/TH | Efficiency | 12.5 J/TH |
| 50 dB | Niveau de bruit | 38 dB |
| 14.4 kg | Weight | 0.3 kg |
| 13,819 BTU/hr | BTU Output | 51 BTU/hr |
| 44/100 | Home Mining Score | 70/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S21 XP Immersion
Bitaxe Gamma
Based on BTC price of $63,866 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Bitaxe Gamma comes out ahead — it takes 4 of 6 (efficacité, consommation électrique, score de minage domestique, niveau sonore). Its biggest concrete edge: 100% better power draw (4,050.0 vs 15.0 W). The Bitmain Antminer S21 XP Immersion holds the edge in hashrate and rapport qualité-prix. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Bitmain Antminer S21 XP Immersion and Bitaxe Gamma diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21 XP Immersion 24900% more hashrate (300.0 vs 1.2 TH/s)
- Bitaxe Gamma 100% better power draw (4,050.0 vs 15.0 W)
- Bitaxe Gamma 7% better efficacité (13.5 vs 12.5 J/TH)
- Bitaxe Gamma 24% better noise (50.0 vs 38.0 dB)
- Bitaxe Gamma 98% better weight (14.4 vs 0.3 kg)
- Bitmain Antminer S21 XP Immersion 26889% more heat output (13,818.6 vs 51.2 BTU/hr)
- Bitaxe Gamma 59% more score de minage domestique (44.0 vs 70.0)
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 Immersion | Metric | Bitaxe Gamma |
|---|---|---|
| $1,593 | Upfront cost (MSRP) | $99 |
| -$1.05 | Daily net profit | -$0.00 |
| -$1,977 | Net after 1 year | -$99 |
| -$2,361 | Net after 2 years | -$100 |
| -$2,745 | Net after 3 years | -$100 |
| Does not pay back at current rates (negative daily profit) | 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
TieBoth miners produce similar daily profit.
Best for Home Mining
Bitaxe GammaScore: 70/100. 38 dB noise level.
Best for Efficiency
Bitaxe Gamma12.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21 XP Immersion or the Bitaxe Gamma?
At the current BTC price and a $0.10/kWh electricity rate, the Bitaxe Gamma is more profitable at $0.00/day compared to $-1.05/day for the Bitmain Antminer S21 XP Immersion. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer S21 XP Immersion or the Bitaxe Gamma better for noise-sensitive spaces?
The Bitaxe Gamma is quieter at 38 dB compared to the Bitmain Antminer S21 XP Immersion at 50 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S21 XP Immersion or the Bitaxe Gamma?
The Bitaxe Gamma scores 70/100 on our Home Mining Score (vs 44/100 for the Bitmain Antminer S21 XP Immersion). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S21 XP Immersion vs Bitaxe Gamma: how much does the efficiency gap matter?
The Bitmain Antminer S21 XP Immersion runs at 13.5 J/TH while the Bitaxe Gamma runs at 12.5 J/TH — a difference of 1.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 7% better efficacité (13.5 vs 12.5 J/TH).