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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 We do not publish fabricated ratings or invented profit figures.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 (470–526 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 (470–526 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.