Antminer S21 vs Bitmain Antminer S21 (200Th)
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 | Specification | Bitmain Antminer S21 (200Th) |
|---|---|---|
| 200.0 TH/s | Taux de hachage | 200.0 TH/s |
| 3,500 W | Consommation électrique | 3,550 W |
| 17.5 J/TH | Efficiency | 17.8 J/TH |
| 75 dB | Niveau de bruit | — |
| 14.6 kg | Weight | 14.2 kg |
| 11,942 BTU/hr | BTU Output | 12,113 BTU/hr |
| 36/100 | Home Mining Score | 16/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Antminer S21
Bitmain Antminer S21 (200Th)
Based on BTC price of $78,185 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Antminer S21, which leads on 4 of 5 weighted factors (efficacité, consommation électrique, score de minage domestique, niveau sonore). The standout gap is 1% better efficacité (17.5 vs 17.8 J/TH) in the Antminer S21's favour. That said, the Bitmain Antminer S21 (200Th) isn't beaten everywhere — it still wins 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 Antminer S21 and Bitmain Antminer S21 (200Th) diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer S21 1% better power draw (3,500 vs 3,550 W)
- Antminer S21 1% better efficacité (17.5 vs 17.8 J/TH)
- Bitmain Antminer S21 (200Th) 3% better weight (14.6 vs 14.2 kg)
- Bitmain Antminer S21 (200Th) 1% more heat output (11,942 vs 12,113 BTU/hr)
- Antminer S21 125% more score de minage domestique (36.0 vs 16.0)
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.
| Antminer S21 | Metric | Bitmain Antminer S21 (200Th) |
|---|---|---|
| $5,500 | Upfront cost (MSRP) | $1,076 |
| -$1.20 | Daily net profit | -$1.32 |
| -$5,940 | Net after 1 year | -$1,559 |
| -$6,379 | Net after 2 years | -$2,042 |
| -$6,819 | Net after 3 years | -$2,526 |
| 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
Antminer S21Score: 36/100. 75 dB noise level.
Best for Efficiency
Antminer S2117.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Antminer S21 or Bitmain Antminer S21 (200Th) more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 is more profitable at $-1.20/day compared to $-1.32/day for the Bitmain Antminer S21 (200Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer S21 vs Bitmain Antminer S21 (200Th): which runs at a lower noise level?
The Antminer S21 is quieter at 75 dB compared to the Bitmain Antminer S21 (200Th) at 0 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Antminer S21 or the Bitmain Antminer S21 (200Th)?
The Antminer S21 scores 36/100 on our Home Mining Score (vs 16/100 for the Bitmain Antminer S21 (200Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Antminer S21 and Bitmain Antminer S21 (200Th) on J/TH?
The Antminer S21 runs at 17.5 J/TH while the Bitmain Antminer S21 (200Th) runs at 17.8 J/TH — a difference of 0.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 1% better efficacité (17.5 vs 17.8 J/TH).