Whatsminer M70S vs M73: Air-Cooled vs Liquid-Cooled
The Whatsminer M70S is an air-cooled ASIC suitable for standard mining facilities. The Whatsminer M73 is a hydro-cooled unit that requires liquid cooling infrastructure. Both are manufactured by MicroBT.
Our Verdict
The M73 delivers roughly double the hashrate (~470 vs 226 to 258 TH/s), but is less efficient (14.5 vs 13.5 J/TH) and requires liquid-cooled colocation. It cannot run in an air-cooled environment. Choose the M70S for air-cooled farms; choose the M73 for high-density hydro facilities where throughput per rack matters more than J/TH efficiency.
| Spec | Whatsminer M70S | Whatsminer M73 |
|---|---|---|
| Hash Rate | 226-258 TH/s | ~470 TH/s |
| Efficiency (J/TH) | ~13.5 J/TH | ~14.5 J/TH |
| Power Draw | ~3,140-3,500W | ~7,200W |
| Cooling | Air | Hydro (liquid) |
| Price | Contact for price | Contact for price |
Real-world hashrate varies ±3%; power consumption ±5%. Verify current firmware specifications with MicroBT.
Host Any of These Miners in Texas
Fathom Labs hosts M70, M70S, and M73 units at our Texas ERCOT facility at $0.07 USD/kWh all-in, with no performance fees and 24/7 NOC monitoring. Our facility supports both air-cooled and hydro-cooled units.
Frequently Asked Questions
- Is the Whatsminer M73 more efficient than the M70S?
- No. The M73 is less efficient per terahash at ~14.5 J/TH versus the M70S at ~13.5 J/TH. The M73's advantage is raw hashrate and density, not efficiency per watt.
- Why is the M73 less efficient but more powerful than the M70S?
- The M73's hydro cooling allows MicroBT to pack more chips into a single unit, delivering nearly double the hashrate. But running more chips introduces thermal trade-offs that result in slightly higher J/TH. The M73 is optimized for throughput in high-density colocation, not per-watt efficiency.
- Can I run the M73 in the same facility as my M70S?
- Only if your facility supports liquid (hydro) cooling. The M73 cannot run in an air-cooled environment — it requires a liquid cooling loop. Air-cooled M70S units and hydro M73 units can coexist in a hybrid facility equipped with both cooling systems.
- Which earns more bitcoin per day, the M70S or M73?
- The M73 earns more per day at ~470 TH/s versus 226 to 258 TH/s. However, its higher power draw (~7,200W vs ~3,140 to 3,500W) means operating costs are significantly higher. Use our profitability calculator to compare net earnings at your electricity rate.
- Does Fathom Labs support both air-cooled and hydro miners?
- Yes. Our Texas facility supports both air-cooled units (M70S) and hydro-cooled units (M73) at $0.07 USD/kWh all-in. Contact us to confirm current availability and infrastructure capacity for your planned deployment.