Every Bitmain Mining Chip Compared
From the BM1385 (28nm, 2015) to the BM1370 (5nm, 2024) -- a decade of ASIC evolution. Compare hashrate, efficiency, process nodes, and board architecture across every Bitmain SHA-256 mining chip.
Chip Generation Timeline
Efficiency Improvement Over Time
J/TH (Joules per Terahash) -- lower is better. Bitmain has achieved a 13x efficiency improvement from BM1385 to BM1370.
Full Specifications Comparison
Chip Details
Key Takeaways
13x Efficiency Gain
From 200 J/TH (BM1385) to 15 J/TH (BM1370) -- Bitmain achieved a 13x improvement in mining efficiency across 9 chip generations and a decade of development.
Architecture Shift in S21 Era
The BM1368/BM1370 generation moved to ~1.0-1.2V domain voltage (from ~0.4V), eliminated the PIC controller, and delivered 6-7x per-chip hashrate -- a fundamental redesign of hash board architecture.
5nm Dominates Current Gen
All current-generation Bitmain miners (S19 XP, S21, S21 Pro) use 5nm chips. The jump from 7nm to 5nm delivered the biggest single-generation efficiency improvement in Bitmain history.
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Last reviewed May 25, 2026. Added to route educational and product traffic toward exact commercial next steps.