Encyclopedia How the network works · Entry 216
Bitcoin mining hardware: hash rate, power and ASIC efficiency
In this article
At a glance
Key facts
Read the conditions attached to the numbers
BITMAIN’s March 2025 S21 guide lists a 200 TH/s variant with typical wall power of 3,500 W and efficiency of 17.5 J/TH at 25°C inlet temperature. This is a dated manufacturer example, not a current buying recommendation.
The guide gives hash-rate variation of ±3% and wall-power and efficiency variation of ±5%. It also specifies electrical and environmental requirements. Do not treat a typical rating as a guaranteed measurement in every installation.
Convert power into energy before pricing electricity
At a constant 3,500 W, a hypothetical machine uses 3.5 kW × 24 hours = 84 kWh per day. At an assumed energy price of 0.10 currency units per kWh, that is 8.40 currency units per day for the machine’s electricity.
The example excludes cooling, other equipment, downtime, demand charges and purchase costs. Dividing 3,500 W by 200 TH/s gives 17.5 joules per terahash, matching the stated typical efficiency.
Hardware also needs a valid mining job
A hashing device needs software to supply candidate work and submit results. It does not independently decide every transaction or guarantee that a successful-looking result will be accepted by the network.
Distinguish local machine performance from accepted work credited by a pool. Connection problems or stale jobs can reduce useful submitted work even while fans run and the device reports a high hash rate.
Direct answers
Questions people ask
Does twice the hash rate always mean twice the profit?
No. Hash rate describes work, while profit also depends on electricity and other costs, network conditions and the reward arrangement. Compare actual costs and accepted work rather than extrapolating a profit claim from a device label.
Are watts and kilowatt-hours interchangeable?
No. Watts measure power; kilowatt-hours measure energy over time. A constant 3.5 kW load consumes 3.5 kWh in one hour and 84 kWh in 24 hours.
Inspect the evidence
The answer and key facts have stable claim links. These records retain the scope and qualification when reused.
Bitcoin mining hardware repeatedly hashes candidate block headers. Purpose-built machines, called ASICs, are designed for that work. Compare hash rate, power measured at the wall, efficiency and operating requirements together. A higher hash rate does not by itself establish lower electricity cost per unit of work, and no specification guarantees mining revenue or profit.
Educational explanation. Product-specific behavior is scoped to the cited documentation, checked 2026-10-02.
Scope: Bitcoin · data through 2026-10-02. Verification: verified · 2026-10-02T19:29:20.637Z.
Link to this claimHash rate: The rate of candidate hash calculations
Scope: Bitcoin · data through 2026-10-02. Verification: verified · 2026-10-02T19:29:20.637Z.
Link to this claimWall power: Electrical demand under stated conditions
Scope: Bitcoin · data through 2026-10-02. Verification: verified · 2026-10-02T19:29:20.637Z.
Link to this claimEfficiency: Joules per terahash; lower uses less energy per work
Scope: Bitcoin · data through 2026-10-02. Verification: verified · 2026-10-02T19:29:20.637Z.
Link to this claimRevision history
- — First publication after primary-source research and separate automated verification.
Source register
Sources and references
Retrieval dates and locators are recorded individually.- MiningBitcoin developer documentation
Hardware work, candidate blocks and pool shares; historical examples are not current equipment recommendations.
Locator: Mining; Solo Mining; Pool Mining; Block Prototypes · Version / scope: Developer guide; historical implementation details require qualification · Retrieved: 2026-10-02T18:53:53.955ZOpen source - S21 User GuideBITMAIN
Manufacturer-rated SHA-256 hash rate, wall power, efficiency and conditions; used as a dated equipment example.
Locator: Section 1.2 Server Specification, printed pages 4–5: Table 1-1 Product Glance, Table 1-2 Detailed Characteristics of Product and notes · Version / scope: S21 User Guide V1.2.5; not a buying recommendation · Retrieved: 2026-10-02T18:55:07.160ZOpen source - Protocol OverviewStratum V2 specification
Separate mining, job declaration and template distribution protocols.
Locator: 3. Protocol Overview: Mining Protocol, Job Declaration Protocol, Template Distribution Protocol and roles · Retrieved: 2026-10-02T18:53:58.669ZOpen source - Can you make money as a Bitcoin miner?f2pool
Historical 2020 account of payout method mechanics. Historical prices, subsidies, pool fees and product recommendations are not current facts.
Locator: Mining pool selection: PPS, PPLNS, FPPS and PPS+ definitions; mining economics and cost qualifications · Version / scope: Published 2020-09-03; historical payout-method mechanics and mining cost categories only · Retrieved: 2026-10-02T19:11:55.963ZOpen source
Research and drafting use AI assistance. A separate automated review checks claims against primary sources; no external expert or named human review is implied. Publication, substantive editing, source retrieval and verification are recorded separately. This version was independently checked by an automated reviewer on 2 October 2026.
Editorial method and correctionsDegrees of Satoshi editorial project. “Bitcoin mining hardware: hash rate, power and ASIC efficiency.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/bitcoin-mining-hardware/