Option 1
Whatsminer M21S (56TH/s)
Option 2
KS3 (8TH/s)
Whatsminer M21S (56TH/s) leads this comparison
Whatsminer M21S (56TH/s) comes out ahead on more buyer-facing signals here. KS3 (8TH/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 | Whatsminer M21S (56TH/s) | KS3 (8TH/s) | Advantage |
|---|---|---|---|
| Brand | MicroBT | IceRiver | Contextual |
| Model | M21 | KS3 | Contextual |
| Hashrate | 56 TH/s Best | 8 TH/s | Whatsminer M21S (56TH/s) |
| Power Consumption | 3360W | 3200W Best | KS3 (8TH/s) |
| Efficiency | 60.00 J/TH Best | 400.00 J/TH | Whatsminer M21S (56TH/s) |
| Daily energy use | 80.6 kWh | 76.8 kWh Best | KS3 (8TH/s) |
| Net Daily Profit (Est.) | -$3.03 Best | -$3.05 | Whatsminer M21S (56TH/s) |
| Monthly Profit (Est.) | -$90.85 Best | -$91.44 | Whatsminer M21S (56TH/s) |
| Price | N/A | N/A | Contextual |
| Estimated ROI | N/A | N/A | Contextual |
| Cooling | AIR | AIR | Contextual |
| Dimensions | 155 x 390 x 240 mm | 370 x 290 x 195 mm | Contextual |
| Weight | 12500 g Best | 14400 g | Whatsminer M21S (56TH/s) |
Performance
Whatsminer M21S (56TH/s) has the hashrate edge for raw output potential.
Efficiency
Whatsminer M21S (56TH/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: Whatsminer M21S (56TH/s) or KS3 (8TH/s)?
Whatsminer M21S (56TH/s) has a higher hashrate of 56 TH/s compared to KS3 (8TH/s)'s 8 TH/s.
Is Whatsminer M21S (56TH/s) more efficient than KS3 (8TH/s)?
Yes, Whatsminer M21S (56TH/s) is more energy efficient at 60.00 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
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