Antminer Z15 Pro (840KH/s) vs Antminer S21 Hydro (335TH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
Antminer Z15 Pro (840KH/s)
Option 2
Antminer S21 Hydro (335TH/s)
Antminer Z15 Pro (840KH/s) leads this comparison
Antminer Z15 Pro (840KH/s) comes out ahead on more buyer-facing signals here. Antminer S21 Hydro (335TH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.
Profit estimates use currently available product data and a hosted electricity rate of $0.060/kWh.
Technical comparison
Side-by-side mining, operating, and commercial specs.
| Feature | Antminer Z15 Pro (840KH/s) | Antminer S21 Hydro (335TH/s) | Advantage |
|---|---|---|---|
| Brand | Antminer | Antminer | Contextual |
| Model | Z15 | S21 | Contextual |
| Hashrate | 840 KH/s | 335 TH/s Best | Antminer S21 Hydro (335TH/s) |
| Power Consumption | 2780W Best | 5360W | Antminer Z15 Pro (840KH/s) |
| Efficiency | 3.31 J/KH Best | 16.00 J/TH | Antminer Z15 Pro (840KH/s) |
| Daily energy use | 66.7 kWh Best | 128.6 kWh | Antminer Z15 Pro (840KH/s) |
| Net Daily Profit (Est.) | $22.70 Best | $1.98 | Antminer Z15 Pro (840KH/s) |
| Monthly Profit (Est.) | $680.90 Best | $59.45 | Antminer Z15 Pro (840KH/s) |
| Price | $6,000.30 | N/A | Contextual |
| Estimated ROI | 8.7 mo | N/A | Contextual |
| Cooling | AIR | HYDRO | Contextual |
| Dimensions | 245 x 290 x 132 mm | 410 x 209 x 170 mm | Contextual |
| Weight | 18000 g | 17000 g Best | Antminer S21 Hydro (335TH/s) |
Performance
Antminer S21 Hydro (335TH/s) has the hashrate edge for raw output potential.
Efficiency
Antminer Z15 Pro (840KH/s) is stronger when comparing joules per hash unit.
Buying decision
Check live stock, delivery schedule, and hosting capacity on the product page before placing an order.
Frequently asked questions
Which is more powerful: Antminer Z15 Pro (840KH/s) or Antminer S21 Hydro (335TH/s)?
Antminer S21 Hydro (335TH/s) has a higher hashrate of 335 TH/s compared to Antminer Z15 Pro (840KH/s)'s 840 KH/s.
Is Antminer Z15 Pro (840KH/s) more efficient than Antminer S21 Hydro (335TH/s)?
Yes, Antminer Z15 Pro (840KH/s) is more energy efficient at 3.31 J/KH.
Which miner has the better estimated ROI?
Estimated ROI is not available because one of the miners is missing current pricing or profit data.
Every Day You Wait is Revenue You Lose
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