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2026-08-09 21:36:03 UTC

SoloSatoshi on Nostr: Run the Numbers Before you Buy the Hype of the New BM1373 Home Miners. A new ...

Run the Numbers Before you Buy the Hype of the New BM1373 Home Miners.

A new generation of desktop Bitcoin miners built on Bitmain's BM1373 chip is hitting the market, and the marketing deserves scrutiny. Watch for spec sheets that pair the overclocked hashrate with the low-power efficiency number. Those come from two different modes you can't run at the same time. One newer unit advertises 3.2 TH/s and ~11 J/TH in the same headline, but at 3.2 TH/s it actually runs 14.2 J/TH. Its honest stock operating point is 2.1 TH/s at 22W.

These chips are also carrying a heavy first-to-market premium.
So we ran the actual cost of ownership at both devices' stock chip frequencies, using the US median electricity rate of $0.17/kWh (chart attached):

Thor X1 (1× BM1373): 2.1 TH/s, 22W, 10.6 J/TH, $269
2× Bitaxe Gamma (BM1370): 2.4 TH/s, 36W, 15 J/TH, $144

Five-year net cost: $272 for the two Gammas vs $310 for the BM1373 unit. The newer chip's efficiency edge is real, but at residential rates it saves about $18/yr, meaning it takes ~7 years to repay the $125 price premium. Longer than these devices will realistically run, and the Gammas give you more hashrate and open-source firmware.

Neither earns a dime at residential rates. Every home miner is a slow-drip cost, not an income stream. Buy one for the hobby, the education, or the lottery ticket. Just do it with the real numbers, not the headline ones.