Bitmain Antminer S21 XP Hyd vs Bitmain S19k Pro
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 XP Hyd | Specification | Bitmain S19k Pro |
|---|---|---|
| 473.0 TH/s | Hashrate | 120.0 TH/s |
| 5,676 W | Power Consumption | 2,760 W |
| 12.0 J/TH | Efficiency | 23.0 J/TH |
| 50 dB | Noise Level | 75 dB |
| 12.3 kg | Weight | 14.5 kg |
| 19,367 BTU/hr | BTU Output | 9,417 BTU/hr |
| 44/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | Bitmain |
Profitability Comparison
Bitmain Antminer S21 XP Hyd
Bitmain S19k Pro
Based on BTC price of $79,086 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitmain Antminer S21 XP Hyd, which leads on 4 of 6 weighted factors (efficiency, hashrate, home mining score, noise level). Its biggest concrete edge: 294% more hashrate (473 vs 120 TH/s). The Bitmain S19k Pro holds the edge in power consumption and price-performance. 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 Bitmain S19k Pro diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21 XP Hyd 294% more hashrate (473 vs 120 TH/s)
- Bitmain S19k Pro 51% better power draw (5,676 vs 2,760 W)
- Bitmain Antminer S21 XP Hyd 48% better efficiency (12.0 vs 23.0 J/TH)
- Bitmain Antminer S21 XP Hyd 33% better noise (50.0 vs 75.0 dB)
- Bitmain Antminer S21 XP Hyd 15% better weight (12.3 vs 14.5 kg)
- Bitmain Antminer S21 XP Hyd 106% more heat output (19,367 vs 9,417 BTU/hr)
- Bitmain Antminer S21 XP Hyd 22% more home mining score (44.0 vs 36.0)
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 Hyd | Metric | Bitmain S19k Pro |
|---|---|---|
| $5,099 | Upfront cost (MSRP) | $313 |
| $3.59 | Daily net profit | -$2.26 |
| -$3,788 | Net after 1 year | -$1,137 |
| -$2,477 | Net after 2 years | -$1,961 |
| -$1,166 | Net after 3 years | -$2,784 |
| Takes ~3.9 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$5.85/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
Is the Bitmain Antminer S21 XP Hyd or Bitmain S19k Pro more profitable?
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 $-2.26/day for the Bitmain S19k Pro. 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 S19k Pro better for noise-sensitive spaces?
The Bitmain Antminer S21 XP Hyd is quieter at 50 dB compared to the Bitmain S19k Pro at 75 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 S19k Pro?
The Bitmain Antminer S21 XP Hyd scores 44/100 on our Home Mining Score (vs 36/100 for the Bitmain S19k Pro). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer S21 XP Hyd and Bitmain S19k Pro on J/TH?
The Bitmain Antminer S21 XP Hyd runs at 12.0 J/TH while the Bitmain S19k Pro runs at 23.0 J/TH — a difference of 11.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 48% better efficiency (12.0 vs 23.0 J/TH).