Antminer S21 Hydro (335TH/s) vs Antminer S9 Hydro (18TH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
Antminer S21 Hydro (335TH/s)
Option 2
Antminer S9 Hydro (18TH/s)
Antminer S21 Hydro (335TH/s) leads this comparison
Antminer S21 Hydro (335TH/s) comes out ahead on more buyer-facing signals here. Antminer S9 Hydro (18TH/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 S21 Hydro (335TH/s) | Antminer S9 Hydro (18TH/s) | Advantage |
|---|---|---|---|
| Brand | Antminer | Antminer | Contextual |
| Model | S21 | S9 | Contextual |
| Hashrate | 335 TH/s Best | 18 TH/s | Antminer S21 Hydro (335TH/s) |
| Power Consumption | 5360W | 1728W Best | Antminer S9 Hydro (18TH/s) |
| Efficiency | 16.00 J/TH Best | 96.00 J/TH | Antminer S21 Hydro (335TH/s) |
| Daily energy use | 128.6 kWh | 41.5 kWh Best | Antminer S9 Hydro (18TH/s) |
| Net Daily Profit (Est.) | $1.94 Best | -$1.98 | Antminer S21 Hydro (335TH/s) |
| Monthly Profit (Est.) | $58.25 Best | -$59.35 | Antminer S21 Hydro (335TH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | HYDRO | HYDRO | Contextual |
| Dimensions | 410 x 209 x 170 mm | 125 x 360 x 190 mm | Contextual |
| Weight | 17000 g | 5150 g Best | Antminer S9 Hydro (18TH/s) |
Performance
Antminer S21 Hydro (335TH/s) has the hashrate edge for raw output potential.
Efficiency
Antminer S21 Hydro (335TH/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 S21 Hydro (335TH/s) or Antminer S9 Hydro (18TH/s)?
Antminer S21 Hydro (335TH/s) has a higher hashrate of 335 TH/s compared to Antminer S9 Hydro (18TH/s)'s 18 TH/s.
Is Antminer S21 Hydro (335TH/s) more efficient than Antminer S9 Hydro (18TH/s)?
Yes, Antminer S21 Hydro (335TH/s) is more energy efficient at 16.00 J/TH.
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
Curious? Let’s connect to answer your questions.