Antminer S21 XP vs Pantech SX6
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S21 XP | Specification | Pantech SX6 |
|---|---|---|
| 270.0 TH/s | Hashrate | 8.5 TH/s |
| 3,645 W | Power Consumption | 1,000 W |
| 13.5 J/TH | Efficiency | 117.7 J/TH |
| 75 dB | Noise Level | — |
| 15.4 kg | Weight | 3,000.0 kg |
| 12,437 BTU/hr | BTU Output | 3,412 BTU/hr |
| 30/100 | Home Mining Score | 31/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Pantech |
Profitability Comparison
Antminer S21 XP
Pantech SX6
Based on BTC price of $79,268 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Antminer S21 XP edges it: 3 of 5 factors go its way (efficiency, hashrate, noise level). Where it pulls away hardest is 3076% more hashrate (270.0 vs 8.5 TH/s). That said, the Pantech SX6 isn't beaten everywhere — it still wins power consumption and home mining score. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.
Spec Deltas
The Antminer S21 XP and Pantech SX6 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Antminer S21 XP 3076% more hashrate (270.0 vs 8.5 TH/s)
- Pantech SX6 73% better power draw (3,645 vs 1,000 W)
- Antminer S21 XP 89% better efficiency (13.5 vs 117.7 J/TH)
- Antminer S21 XP 99% better weight (15.4 vs 3,000.0 kg)
- Antminer S21 XP 264% more heat output (12,437 vs 3,412 BTU/hr)
- Pantech SX6 3% more home mining score (30.0 vs 31.0)
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.
| Antminer S21 XP | Metric | Pantech SX6 |
|---|---|---|
| $8,200 | Upfront cost (MSRP) | — |
| $1.41 | Daily net profit | -$2.08 |
| -$7,686 | Net after 1 year | -$759 |
| -$7,172 | Net after 2 years | -$1,519 |
| -$6,658 | Net after 3 years | -$2,278 |
| Takes ~16.0 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
Antminer S21 XP$3.49/day higher profit at current rates.
Best for Home Mining
Pantech SX6Score: 31/100. 0 dB noise level.
Best for Efficiency
Antminer S21 XP13.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Antminer S21 XP or the Pantech SX6?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S21 XP is more profitable at $1.41/day compared to $-2.08/day for the Pantech SX6. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Antminer S21 XP vs Pantech SX6: which runs at a lower noise level?
The Antminer S21 XP is quieter at 75 dB compared to the Pantech SX6 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Antminer S21 XP vs Pantech SX6: which fits a residential setup better?
The Pantech SX6 scores 31/100 on our Home Mining Score (vs 30/100 for the Antminer S21 XP). 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 XP and Pantech SX6 on J/TH?
The Antminer S21 XP runs at 13.5 J/TH while the Pantech SX6 runs at 117.7 J/TH — a difference of 104.2 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 89% better efficiency (13.5 vs 117.7 J/TH).