The chip-to-model-to-board-to-voltage-domain graph for Bitmain BM-series silicon and the single-chip boards the Bitaxe family uses. The voltage column is the nominal per-chip CORE voltage, held to one consistent basis across every row.
| Chip | Generation | Node | Host models | Chips/board | Domains | Nominal core V | Chip-ID | Efficiency |
|---|---|---|---|---|---|---|---|---|
| BM1385 | Gen 0 (S5/S7 era) | 28nm | Antminer S5, S7 | 45 or 54 (S7 variants) | unverified | — | — | ~200 J/TH |
| BM1387 | Gen 1 (S9 family) | 16nm | Antminer S9, S9i, S9j, T9+ | 63 | 21 | ~0.40 V | 0x1387 | 98 J/TH |
| BM1391 | S9-family refinement | 7nm | Antminer S15, T15 (S9 SE in some sources) | 72 | 12 | — | 0x1387 (shared) | 57 J/TH |
| BM1393 | S9j variant (named-only) | 7nm | Antminer S9j (S9-family refinement) | 63 (S9-family) | 21 (S9-family) | — | 0x1387 (shared) | ~68 J/TH |
| BM1397 | Gen 2 (S17/T17) | 7nm | Antminer S17, S17 Pro, T17, S17e, T17e (entire S17/T17 base+e generation) | 48 (S17) | 12 | ~0.40 V | 0x1397 | 40-55 J/TH (S17+ 40 / S17 45 / T17 55) |
| BM1396 | Gen 2 (S17+/T17+ "Plus") | 7nm | Antminer S17+, T17+ | 65 (S17+) | 12 | ~0.40 V | 0x1396 | ~36 J/TH |
| BM1398 | Gen 3 (S19 family) | 7nm | Antminer S19 (76-chip), S19 Pro (114-chip), S19j, S19a, T19 | 76 (S19) / 114 (S19 Pro) | 38 | ~0.36 V (S19) / ~0.32 V (S19 Pro) | 0x1398 | 29.5 J/TH |
| BM1362 | Gen 4 (S19j Pro family) | 5nm | Antminer S19j Pro, S19j Pro+ | 110 (S19j Pro) | unverified | — | 0x1362 | ~21.5 J/TH |
| BM1366 | Gen 4 (S19 XP / first 5nm flagship) | 5nm | Antminer S19 XP, S19K Pro, S19XP Hydro · Bitaxe Ultra / Hex Supra (single-chip) | varies | varies | ~0.40 V | 0x1366 | 21.5 J/TH |
| BM1368 | Gen 5 (S21 / T21) | 5nm | Antminer S21, T21, S21 Hydro · Bitaxe Supra (single-chip) | 108 (S21) | 12 | ~1.20 V | 0x1368 | 17.5 J/TH |
| BM1370 | Gen 5 (S21 Pro / XP — flagship 5nm) | 5nm | Antminer S21 Pro, S21 XP, S21+ · Bitaxe Gamma / Gamma Turbo (single-chip) | 91 (S21 XP) | 13 (S21 XP) | ~0.40 V | 0x1370 | 15 J/TH |
| BM1373 | Gen 6 (S23 — pre-hardware) | 5nm / 3nm (projected) | Antminer S23 (pre-coverage — not yet shipping) | projected | projected | — | 0x1373 | projected (sub-15 J/TH target) |
| BM1485 | Scrypt (Litecoin/Dogecoin) | 28nm | Antminer L3+, L3++ | 72 | 12 | — | — | ~1.6 J/MH |
| BM1489 | Scrypt (Litecoin/Dogecoin) | 7nm | Antminer L7 | 120 (per chain, 4 chains) | unverified | — | — | ~0.36 J/MH |
| MicroBT K1 (chip_id 0x1000) | WhatsMiner Gen 1 | 28nm (legacy) | WhatsMiner M1, M2, M3, M5, M6, M7 (M3 v10-v50) | per model | unverified | — | 0x1000 | see model spec |
| MicroBT K2 (chip_id 0x1800) | WhatsMiner Gen 2 | 16nm | WhatsMiner M8, M10, M11, M12 (M8-M12 line) | per model | unverified | — | 0x1800 | see model spec |
| MicroBT K3 (chip_id 0x1920) | WhatsMiner Gen 3 | 7nm | WhatsMiner M19, M20, M20S (and the M50/M60 5nm/3nm extension) | per model (M20S ~105) | unverified | — | 0x1920 | see model spec |
| Avalon A3200C-Plus | Avalon (A13-series host) | 7nm (older) | Avalon A1346, A1346N (MM317 control) | per model | unverified | — | — | see model spec |
| Avalon A3198S | Avalon (A14-series host) | 7nm (refined) | Avalon A14x, A14xI, A1466HS (MM318_X2 control; air + liquid) | per model | unverified | — | — | see model spec |
| Avalon A3197S | Avalon (A15-series host) | 5nm-class | Avalon A15x, A15xI, A1566HS (MM319 control; air + liquid) | per model | unverified | — | — | see model spec |
Nominal core V = the approximate per-chip operating (core) voltage of the silicon, held to a single consistent basis across every row. On a hash board this voltage is regulated per series-connected power DOMAIN, never per individual chip. "—" = not a hash-board chip or no confident core value. BM1370 (S21 Pro / XP, Bitaxe Gamma) shares the BM1366 5 nm class at ~0.40 V core — not the BM1368 ~1.2 V class. S21 / S21 XP carry no PIC controller.
Source: D-Central ASIC Chip Database (Bible-verified: MASTER_CHIP_CATALOG, HARDWARE_REFERENCE, HASHBOARD_DIAGNOSTICS, AUTOTUNER_DESIGN). Voltage column = nominal per-chip CORE voltage. Gamma=BM1370 and Ultra=BM1366 are the 5nm ~0.40 V core class; Supra=BM1368 runs ~1.2 V; S17/T17=BM1397; S21 has no PIC.
Back to the source: ASIC Chip Database · related guide · all reference cards · Open Mining Data hub
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