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Whatsminer M70 Series Reviews: M70, M70S, and M73 (2026)
We sell and host all three Whatsminer models at our Southeast Texas facility. This page reviews each one honestly, including the M73's efficiency caveat: its higher hydro hashrate comes at a lower efficiency per TH, not a higher one.
Each review links to the product page for pricing and to our compare tool for side-by-side analysis. We do not publish fabricated ratings or invented profit figures.
Quick Comparison
| Model | Hashrate | Efficiency | Power | Cooling |
|---|---|---|---|---|
| Whatsminer M70 | 214-242 TH/s | ~14.5 J/TH | ~3,140-3,500 W | Air |
| Whatsminer M70S | 226-258 TH/s | ~13.5 J/TH (best efficiency) | ~3,500 W | Air |
| Whatsminer M73 | 470-526 TH/s (highest hashrate) | 14.5 J/TH | ~7,200 W | Hydro |
Important efficiency note: The Whatsminer M73's advantage is raw hashrate and quiet hydro-cooled operation, NOT energy efficiency. At 14.5 J/TH, the M73 is less efficient per terahash than both air-cooled models. "Hydro" does not mean "more efficient." Choose the M73 for density and noise reasons, not efficiency reasons.
Individual Reviews
Air-cooled · Entry model
Whatsminer M70
- Hashrate
- 214-242 TH/s
- Efficiency
- ~14.5 J/TH
- Power draw
- ~3,140-3,500 W
- Best for
- Budget-conscious first-time miners
Air-cooled · Best efficiency
Whatsminer M70S
- Hashrate
- 226-258 TH/s
- Efficiency
- ~13.5 J/TH
- Power draw
- ~3,500 W
- Best for
- Long-term efficiency-focused operators
Hydro-cooled · Highest hashrate
Whatsminer M73
- Hashrate
- 470-526 TH/s
- Efficiency
- 14.5 J/TH
- Power draw
- ~7,200 W
- Best for
- Large-scale, dense, noise-sensitive deployments
Less efficient per TH than M70S: advantage is raw hashrate and quiet hydro operation
Frequently Asked Questions
Which Whatsminer is the most efficient: M70, M70S, or M73?
The Whatsminer M70S is the most energy-efficient of the three, at ~13.5 J/TH. The M70 and M73 both follow at ~14.5 J/TH, with the M73's advantage being raw hashrate (470 to 526 TH/s) and silent, dense hydro operation, not energy efficiency per terahash.
What is the best Whatsminer for a beginner or first-time miner?
For most beginners, the Whatsminer M70 or M70S is the better starting point. The M70 offers the lowest upfront cost in the series; the M70S provides better long-term efficiency at ~13.5 J/TH. The M73 requires hydro cooling infrastructure and higher upfront investment, better suited for experienced operators scaling to large hashrate.
Does Fathom Labs host all three Whatsminer models?
Yes. Our Southeast Texas facility hosts air-cooled ASICs (M70, M70S) and hydro-cooled ASICs (M73). All three can be deployed at our $0.07/kWh all-in rate plus the one-time $1,020 per-machine onboarding fee.
Is the Whatsminer M73 worth it over the M70S?
It depends on your priorities. The M73 offers up to ~2× the raw hashrate of the M70S (470 to 526 vs. ~258 TH/s) in a single chassis, with near-silent hydro operation and high rack density. However, the M73 is less energy-efficient (14.5 vs. 13.5 J/TH), consumes ~7,200W (vs. ~3,500W), and requires hydro cooling infrastructure. For large-scale, space-constrained, or noise-sensitive deployments, the M73 makes sense. For individual miners or efficiency-focused operations, the M70S is generally the better choice.
Related
Ready to buy or host a Whatsminer?
We sell all three models and host them at $0.07/kWh in Southeast Texas. Contact us to discuss hardware selection or get a quote.