Curated collection

Most Power-Efficient ASIC Miners

Miners ranked by joules per TH/s - the single number that most dominates long-run ROI. Efficient miners stay profitable longer as network difficulty climbs and electricity prices fluctuate, which is why the best buy isn't always the highest hashrate.

BTC
Bitmain
Bitmain Antminer S23e Hyd 2U (865Th)
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Bitmain

S23e U2H Hyd

Hashrate865 TH/S
Power8650 W
Efficiency10 J/Th
AlgorithmSHA-256
$8,996
Daily$25.71
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Frequently Asked Questions

Why does J/TH matter more than hashrate?

Hashrate determines your revenue; J/TH determines how much of that revenue survives the electricity bill. A 5% efficiency gain usually beats a 10% hashrate gain once electricity is factored in.

What is considered a good J/TH in 2026?

For SHA-256, anything below 18 J/TH is competitive and below 12 J/TH is leading edge. Lower-hashrate algorithms use different units - look at the per-algorithm efficiency ranking rather than cross-algorithm absolute numbers.

Are efficient miners worth the price premium?

Usually yes, if your electricity is above $0.05/kWh. Run the payback calc on the product page with your real rate - efficient flagships typically break even faster than mid-tier alternatives when power costs are real.