Bitmain Antminer S21 XP Hyd vs Antminer Slim Edition (S9)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Hyd | Specification | Antminer Slim Edition (S9) |
|---|---|---|
| 473.0 TH/s | Taux de hachage | 12.0 TH/s |
| 5,676 W | Consommation électrique | 1,100 W |
| 12.0 J/TH | Efficiency | 91.7 J/TH |
| 50 dB | Niveau de bruit | 65 dB |
| 12.3 kg | Weight | 3.5 kg |
| 19,367 BTU/hr | BTU Output | 3,753 BTU/hr |
| 44/100 | Home Mining Score | 52/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S21 XP Hyd
Antminer Slim Edition (S9)
Based on BTC price of $78,230 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Selon notre analyse multifactorielle, le Bitmain Antminer S21 XP Hyd l'emporte sur 4 des 6 facteurs (efficacité, hashrate, niveau sonore, rapport qualité-prix). Its biggest concrete edge: 3842% more hashrate (473.0 vs 12.0 TH/s). The Antminer Slim Edition (S9) holds the edge in consommation électrique and score de minage domestique. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Bitmain Antminer S21 XP Hyd and Antminer Slim Edition (S9) diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21 XP Hyd 3842% more hashrate (473.0 vs 12.0 TH/s)
- Antminer Slim Edition (S9) 81% better power draw (5,676 vs 1,100 W)
- Bitmain Antminer S21 XP Hyd 87% better efficacité (12.0 vs 91.7 J/TH)
- Bitmain Antminer S21 XP Hyd 23% better noise (50.0 vs 65.0 dB)
- Antminer Slim Edition (S9) 72% better weight (12.3 vs 3.5 kg)
- Bitmain Antminer S21 XP Hyd 416% more heat output (19,367 vs 3,753 BTU/hr)
- Antminer Slim Edition (S9) 18% more score de minage domestique (44.0 vs 52.0)
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 | Antminer Slim Edition (S9) |
|---|---|---|
| $5,099 | Upfront cost (MSRP) | $350 |
| $3.41 | Daily net profit | -$2.21 |
| -$3,856 | Net after 1 year | -$1,156 |
| -$2,613 | Net after 2 years | -$1,962 |
| -$1,370 | Net after 3 years | -$2,768 |
| Takes ~4.1 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$5.61/day higher profit at current rates.
Best for Home Mining
Antminer Slim Edition (S9)Score: 52/100. 65 dB noise level.
Best for Efficiency
Bitmain Antminer S21 XP Hyd12.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21 XP Hyd or the Antminer Slim Edition (S9)?
At the current BTC price and a $0.10/kWh electricity rate, the Bitmain Antminer S21 XP Hyd is more profitable at $3.41/day compared to $-2.21/day for the Antminer Slim Edition (S9). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Which is quieter, the Bitmain Antminer S21 XP Hyd or Antminer Slim Edition (S9)?
The Bitmain Antminer S21 XP Hyd is quieter at 50 dB compared to the Antminer Slim Edition (S9) at 65 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 Hyd or the Antminer Slim Edition (S9)?
The Antminer Slim Edition (S9) scores 52/100 on our Home Mining Score (vs 44/100 for the Bitmain Antminer S21 XP Hyd). 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 Antminer Slim Edition (S9)?
The Bitmain Antminer S21 XP Hyd runs at 12.0 J/TH while the Antminer Slim Edition (S9) runs at 91.7 J/TH — a difference of 79.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 87% better efficacité (12.0 vs 91.7 J/TH).