Bitmain Antminer S19k Pro vs Bitmain Antminer S21 XP Hyd
Mining profitability comparison for Bitcoin (BTC), Bitcoin Cash (BCH)
Verdict: Bitmain Antminer S19k Pro vs Bitmain Antminer S21 XP Hyd
For Bitcoin mining, the Bitmain Antminer S21 XP Hyd is the more efficient choice, delivering roughly 92% more hashrate per watt than the Bitmain Antminer S19k Pro. The Bitmain Antminer S19k Pro draws 2916W less, cutting electricity costs by about $1788/year at $0.07/kWh. Bottom line: if power efficiency is your priority, the Bitmain Antminer S21 XP Hyd is the stronger pick — but confirm with your real electricity rate and current hardware prices below, since acquisition cost ultimately drives ROI.
Specifications
| Spec | Bitmain Antminer S19k Pro | Bitmain Antminer S21 XP Hyd |
|---|---|---|
| Type | ASIC | ASIC |
| Algorithm | ||
| Hashrate (BTC) | 120 TH/s | 473 TH/s |
| Power Draw | 2760 W | 5676 W |
| Efficiency | 23 J/TH | 12 J/TH |
| Supported Coins | BTC, BCH | BTC, BCH |
| Release Year | N/A | N/A |
Hashrate & Efficiency per Coin
| Coin | Bitmain Pro HR | Bitmain Hyd HR | Power A | Power B | More Efficient |
|---|---|---|---|---|---|
| BTC | 120 TH/s | 473 TH/s | 2760 W | 5676 W | XP ✓ |
| BCH | 120 TH/s | 473 TH/s | 2760 W | 5676 W | XP ✓ |
Daily Electricity Cost at Different Rates
Electricity cost only (not including coin revenue). Lower is better for any given rate.
| Electricity Rate | Bitmain Antminer S19k Pro | Bitmain Antminer S21 XP Hyd | Difference |
|---|---|---|---|
| $0.04/kWh | $2.65 | $5.45 | -$2.80 (A cheaper) |
| $0.06/kWh | $3.97 | $8.17 | -$4.20 (A cheaper) |
| $0.07/kWh | $4.64 | $9.54 | -$4.90 (A cheaper) |
| $0.1/kWh | $6.62 | $13.62 | -$7.00 (A cheaper) |
| $0.12/kWh | $7.95 | $16.35 | -$8.40 (A cheaper) |
| $0.15/kWh | $9.94 | $20.43 | -$10.50 (A cheaper) |
| $0.2/kWh | $13.25 | $27.24 | -$14.00 (A cheaper) |
Pros & Cons
Bitmain Antminer S19k Pro
- Lower acquisition cost (~$1,200–$1,600 on secondary market)
- Moderate power draw (2,760 W) — slightly easier infrastructure
- Widely available on secondary market globally
- Less efficient than S21 series (23 vs 15–17.5 J/TH)
- Thinner profitability margins at higher electricity rates
- Approaching end of competitiveness as newer models dominate
Bitmain Antminer S21 XP Hyd
- Highest single-unit SHA-256 hashrate available (473 TH/s)
- Same 12 J/TH efficiency as the air-cooled S21 XP
- Near-silent operation (~45 dB) — noise managed by the liquid loop, not fans
- Requires Bitmain-compatible Liquid Distribution Unit (LDU) — significant extra cost
- 5,676 W draw demands serious electrical infrastructure (25+ A at 220 V)
- High acquisition cost (~$10,000–$14,000 per unit) limits accessibility
Frequently Asked Questions
Is the Bitmain Antminer S19k Pro or Bitmain Antminer S21 XP Hyd more profitable for Bitcoin mining?
Based on hashrate-per-watt efficiency, the Bitmain Antminer S21 XP Hyd is more efficient for Bitcoin mining. However, actual profitability depends on your electricity cost, hardware acquisition price, and coin price — use the live calculator for exact numbers.
What is the power consumption difference between the Bitmain Antminer S19k Pro and Bitmain Antminer S21 XP Hyd?
For Bitcoin mining, the Bitmain Antminer S19k Pro draws 2760 W while the Bitmain Antminer S21 XP Hyd draws 5676 W. The Bitmain Antminer S19k Pro uses 2916 W less power, which at $0.07/kWh saves ~$1788 per year in electricity.
Can both the Bitmain Antminer S19k Pro and Bitmain Antminer S21 XP Hyd mine the same coins?
Yes — both units can mine Bitcoin (BTC) and Bitcoin Cash (BCH). You can switch between these coins with a simple pool configuration change.
Which unit has a better ROI?
ROI depends on hardware acquisition price, electricity cost, and coin price trajectory. The more efficient unit (better J/TH or hashrate per watt) will generally have a lower operating cost per coin mined, but the absolute ROI timeline is determined by the purchase price. Always model both units in the MiningReturns calculator with your specific electricity rate and current market prices.
More Comparisons
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- Bitmain Antminer S21 Pro vs Bitmain Antminer S21 XP Hyd
- Bitmain Antminer S21 vs Bitmain Antminer S21 XP Hyd
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- Bitmain Antminer S21 XP Hyd vs MicroBT Whatsminer M60S
Enter your electricity rate for live earnings estimates on both units.