WhatsMiner M66S vs WhatsMiner M73

We are comparing two devices from MicroBT — models WhatsMiner M66S (November 2023) and WhatsMiner M73 (December 2025). Both devices operate on SHA-256, mining Bitcoin, Fractal Bitcoin, Bitcoin Cash, BitcoinSV, Terracoin, Namecoin. The main profit focus is currently on Bitcoin, Fractal Bitcoin. The MicroBT WhatsMiner M66S lineup includes 16 modifications: starting performance is 270Th, while top solutions reach 300Th. The MicroBT WhatsMiner M73 lineup includes 29 modifications: starting performance is 470Th, while top solutions reach 526Th. The difference in computing power is 42.97%, but the final advantage can only be shown by the energy efficiency of the equipment. Model WhatsMiner M66S has 18.5 j/Th, while WhatsMiner M73 has 14.5 j/Th. Model WhatsMiner M66S 300Th has a power consumption of 5550 Watts, while WhatsMiner M73 526Th consumes 7627 Watts. There is a fundamental difference in cooling type: WhatsMiner M66S uses Immersion, while WhatsMiner M73 operates on Hydro. Compare 2 offers for MicroBT WhatsMiner M66S from verified suppliers. Right now, the 300Th configuration can be purchased at the minimum price of 239000 RUB. Compare 23 offers for MicroBT WhatsMiner M73 from verified suppliers. Right now, the 476Th configuration can be purchased at the minimum price of 403000 RUB.