Antminer T21 (190MH/s) vs Gamma Duo 650 (1.63TH/s)
Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.
Option 1
Antminer T21 (190MH/s)
Option 2
Gamma Duo 650 (1.63TH/s)
Antminer T21 (190MH/s) leads this comparison
Antminer T21 (190MH/s) comes out ahead on more buyer-facing signals here. Gamma Duo 650 (1.63TH/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 T21 (190MH/s) | Gamma Duo 650 (1.63TH/s) | Advantage |
|---|---|---|---|
| Brand | N/A | Bitaxe | Contextual |
| Model | N/A | Gamma | Contextual |
| Hashrate | 190 MH/s | 1.63 TH/s Best | Gamma Duo 650 (1.63TH/s) |
| Power Consumption | 0W Best | 26W | Antminer T21 (190MH/s) |
| Efficiency | N/A | 15.95 J/TH | Contextual |
| Daily energy use | 0.0 kWh Best | 0.6 kWh | Antminer T21 (190MH/s) |
| Net Daily Profit (Est.) | $7.00 Best | $0.01 | Antminer T21 (190MH/s) |
| Monthly Profit (Est.) | $209.95 Best | $0.38 | Antminer T21 (190MH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 400 x 290 x 195 mm | 10 x 5 x 12 mm | Contextual |
| Weight | 16400 g | 340 g Best | Gamma Duo 650 (1.63TH/s) |
Performance
Gamma Duo 650 (1.63TH/s) has the hashrate edge for raw output potential.
Efficiency
Efficiency data is not available for this comparison.
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 T21 (190MH/s) or Gamma Duo 650 (1.63TH/s)?
Gamma Duo 650 (1.63TH/s) has a higher hashrate of 1.63 TH/s compared to Antminer T21 (190MH/s)'s 190 MH/s.
Is Antminer T21 (190MH/s) more efficient than Gamma Duo 650 (1.63TH/s)?
Efficiency data is not available for this comparison.
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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