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Zcash and Bitcoin both use proof-of-work mining, but they are not mined with the same equipment or evaluated with the same economics. Zcash uses the Equihash algorithm and Bitcoin uses SHA-256, so an ASIC designed for one network cannot mine the other. The most useful comparison is therefore conditional: choose hardware for the algorithm, separate a machine’s modeled electricity use from a whole network’s consumption, and distinguish a protocol’s gross subsidy from the amount a miner actually receives after funding rules, fees, and pool terms.
Grayscale’s September 9, 2026 model used a Bitmain Antminer Z15 Pro for Zcash and an Antminer S23 Hydro for Bitcoin. Under its stated assumptions, the Zcash example produced about twice the reward per rig per day and four times the reward per megawatt-hour, but those are dated modeled figures—not a profitability guarantee. This guide explains what can be compared reliably and where the evidence does not support a clean number.
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| Name | Best for | Key spec | Platforms | Checked |
|---|---|---|---|---|
| Zcash mining | Miners selecting an Equihash ASIC and evaluating ZEC-specific subsidy and pool terms | Equihash proof of work; Grayscale example: Antminer Z15 Pro | Zcash network | November 2026 |
| Bitcoin mining | Miners selecting a SHA-256 ASIC and evaluating BTC-scale network competition | SHA-256 proof of work; Grayscale example: Antminer S23 Hydro | Bitcoin network | November 2026 |
What is the fundamental difference between Zcash and Bitcoin mining?
The algorithm is the dividing line. Zcash uses Equihash, while Bitcoin uses SHA-256. Mining hardware is built around the algorithm it accelerates, which makes the two ASIC markets separate rather than interchangeable.
The Zcash mining guide describes specialized ASIC mining and says an ASIC is required at the network difficulty addressed by the guide. Bitcoin mining equipment is designed for SHA-256; a Bitcoin ASIC cannot be pointed at Zcash and expected to perform useful Equihash work. Conversely, an Equihash ASIC does not become a Bitcoin miner by changing pool settings.
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Both networks use the same broad security model: specialized computers repeatedly solve computational challenges, and a valid block updates the chain. As Grayscale Head of Research Zach Pandl put it, “Both networks are secured by proof-of-work (PoW) mining, in which specialized computers solve computation challenges to earn rewards and update the blockchain.” The similarity ends where the algorithm, machine economics, issuance rules, and competition begin.
Which ASIC hardware does each network use?
Use an Equihash-capable ASIC for Zcash and a SHA-256 ASIC for Bitcoin. Buying a machine with the wrong algorithm is not a configuration mistake that software can fix.
| Network | Algorithm | Research example | What the example does—and does not—tell you |
|---|---|---|---|
| Zcash | Equihash | Bitmain Antminer Z15 Pro | It is the Zcash rig in Grayscale’s September 2026 model; it is not a claim of current availability, suitability, or profit. |
| Bitcoin | SHA-256 | Bitmain Antminer S23 Hydro | It is the Bitcoin rig in the same dated model; it is not a universal recommendation or a guarantee that the machine remains competitive. |
Before purchasing, confirm the machine’s supported algorithm, advertised hash rate, power draw, cooling requirement, electrical input, firmware constraints, and warranty. The Zcash guide also covers buying an ASIC, hosting it, setting up software, and connecting to a pool. Market conditions can make a guide’s hardware or economic assumptions obsolete, so treat its operational instructions as a starting point and verify current network requirements.
“ASIC” does not mean “profitable.” Hash rate determines your share of the network’s work, but difficulty adjusts as competition changes. Equipment cost, depreciation, downtime, heat removal, hosting, repairs, and the price of ZEC or BTC can overwhelm the gross coin revenue shown on a calculator.
Can one machine mine both Zcash and Bitcoin?
No. A SHA-256 Bitcoin ASIC and an Equihash Zcash ASIC perform different computations and are not interchangeable for normal network mining.
You can own both types of machines and operate them side by side, but each must be connected to a pool or node that accepts its algorithm. A software setting cannot turn a SHA-256 chip into an Equihash engine. If a listing claims that one fixed-function ASIC mines both networks at full advertised performance, check whether it is actually describing separate devices, a different algorithm, or a speculative alternate use.
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How should energy use be compared?
Compare like with like. A rig’s power draw, a modeled reward per megawatt-hour, and a network’s annual electricity consumption are different measurements and should not be presented as one ranking.
What the Bitcoin evidence shows
The U.S. Energy Information Administration reports Cambridge Centre for Alternative Finance estimates for Bitcoin and emphasizes that the figures are modeled ranges updated as mining activity changes. For 2023, the reported global Bitcoin electricity estimate was 67–240 terawatt-hours (TWh), with a 120 TWh point estimate. The range reflects uncertainty in miner activity and operating characteristics; it is not a meter reading from every facility.
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Read the EIA’s explanation of the Bitcoin electricity estimates and their limitations for the methodology and bounds. The estimate covers the Bitcoin network, not the electricity consumed by one Antminer.
What cannot be claimed for Zcash
The supplied evidence does not provide a comparable, current, network-wide Zcash electricity estimate. It would therefore be misleading to divide a Zcash ASIC’s power draw by the Bitcoin network’s 120 TWh point estimate, or to turn a modeled Zcash reward-per-MWh result into a Zcash network total.
A defensible comparison says exactly that: Bitcoin has a published Cambridge/EIA 2023 range and point estimate, while a like-for-like Zcash network figure remains unavailable in this evidence set. That is a limitation of the comparison, not evidence that Zcash is definitively more or less energy-intensive as a whole network.
Machine efficiency versus network demand
For an individual operator, electricity cost is calculated from the machine’s measured or specified wattage, operating hours, and tariff. For a network, electricity demand depends on all participating machines, their efficiency, uptime, cooling, and the distribution of hardware. A smaller network can have an attractive reward per machine without its total electricity use being directly comparable to Bitcoin’s global estimate.
What are the block rewards and miner allocations?
Separate three concepts: the gross block subsidy created by the protocol, the portion directed to miners under current funding rules, and transaction fees included in the block.
Gross subsidy
The Zcash protocol specification defines the block subsidy as value created when a block is mined. It also says miners receive transaction fees and that subsidy and funding-stream calculations depend on block height. A gross subsidy is therefore not automatically the amount credited to a particular miner or pool participant.
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Funding streams and the miner share
A separate 2026 SEC disclosure describes the post-November 2024 halving and NU6 allocation as 80% to miners, 8% to the Financial Privacy Foundation for Zcash Community Grants, and 12% to an in-protocol lockbox. Because this description is tied to a filing date and a particular upgrade context, verify the current protocol state before presenting those percentages as present-tense rules. Do not collapse a gross 1.5625-ZEC figure and an 80% miner allocation into one unqualified “miner reward.”
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The filing is useful for understanding why issuance can be split among destinations; it is not a pool payout statement. A miner’s eventual amount also depends on whether it finds a block directly or submits shares through a pool, the pool’s accounting method, and the pool fee.
Transaction fees
Transaction fees are additional to newly created subsidy when transactions include fees and a miner includes them in a block. Fee totals vary with network demand and the transactions selected. A comparison that quotes only newly minted coins omits this variable component; a comparison that quotes a pool payout without identifying its fee schedule may overstate the operator’s net income.
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How do the modeled rewards compare?
Grayscale’s article, using data as of September 9, 2026, estimated aggregate miner rewards at approximately $35 million per day for Bitcoin and roughly $2 million per day for Zcash. Those are modeled network-level dollar estimates under the source’s assumptions, not guaranteed cash flow.
For its selected machines, Grayscale estimated Zcash rewards at about twice Bitcoin’s reward per rig per day and about four times per megawatt-hour. The model assumed electricity at $0.05 per kilowatt-hour, full uptime, and zero transaction fees. It excluded pool fees, cooling and other operating costs, and equipment purchase cost and depreciation. The results can change as coin prices, difficulty, block production, hardware efficiency, and electricity tariffs change.
The apparent tension between lower aggregate Zcash rewards and higher reward per example rig is explained by scale and competition. Bitcoin has a much larger mining ecosystem and aggregate reward pool in the model; a particular Zcash machine may nevertheless receive more modeled revenue per unit of hardware or energy under the chosen assumptions. Neither observation establishes which network will be more profitable for your site.
Read Grayscale’s dated comparison for the assumptions behind its figures. Present the numbers with their date and source whenever you use them, and do not substitute them for a current calculation using your own tariff and machine quote.
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A pool combines many miners’ hash power, submits work to the network, and distributes proceeds according to its payout method. Pool accounting is separate from the protocol’s gross subsidy and from the network’s total daily reward.
Before joining, check four items in the provider’s current terms:
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- Payout method: Some methods pay for submitted shares on a relatively predictable schedule; others pay when the pool finds blocks or according to a score over time. The method changes variance and timing, not the underlying protocol subsidy.
- Pool fee: A percentage, fixed charge, or deduction for specific services reduces the amount credited to you. A model that assumes zero transaction fees and excludes pool fees is gross, not net.
- Minimum payout and schedule: A low-balance account may not receive funds immediately if a threshold or payment interval applies. Confirm how unpaid balances are handled when you stop mining.
- Settlement treatment: Determine whether the pool passes through transaction fees, how rejected shares are treated, and which currency is paid. These details can materially change the result for a small operator.
The Zcash mining guide discusses pool configuration, but pool names, fees, server locations, and payout rules change. Verify those details directly before directing hash power.
Is Zcash or Bitcoin mining more profitable?
There is no universal winner. Profitability is a calculation for a particular machine, location, date, and pool—not a permanent property of the coin.
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Use this framework for either network:
- Identify compatible hardware. Record the algorithm, hash rate, power draw, purchase price, shipping, installation, and expected useful life.
- Use current network inputs. Obtain the current network difficulty or equivalent calculator input, block interval, subsidy allocation, coin price, and recent fee conditions. Date every input.
- Calculate gross coin revenue. Estimate the machine’s expected share of block rewards and fees before deductions. If using a published model, preserve its date and assumptions rather than presenting it as your own result.
- Subtract electricity. Convert watts to kilowatt-hours: watts divided by 1,000, multiplied by operating hours. Multiply by your all-in tariff, including demand or hosting charges where applicable.
- Subtract operating costs. Include pool fees, hosting, cooling, internet, maintenance, repairs, payment fees, and downtime. A machine at full uptime is an optimistic scenario, not a guarantee.
- Account for capital and depreciation. Allocate the ASIC purchase and setup cost over the period you expect to operate it. Include resale uncertainty and the possibility that a newer generation makes the machine uneconomic sooner.
- Stress-test the result. Recalculate at higher electricity prices, lower coin prices, increased difficulty, and several days of downtime. If the outcome turns negative under a plausible change, treat the project as high-risk.
A simple daily estimate is: net daily result = gross mining revenue + fees − electricity − pool fee − hosting/cooling/maintenance − dailyized hardware cost. The equation is only as good as its inputs. Do not insert Grayscale’s $0.05/kWh assumption if your tariff is different.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What costs and practical constraints are easy to miss?
Electricity is often the largest variable cost, but it is not the only one. ASICs operate continuously and turn nearly all consumed power into heat, so a facility needs suitable circuits, ventilation or liquid cooling, noise control, and a plan for heat rejection. Hosting may bundle some of these services or charge separately.
Uptime matters because a machine that is offline earns nothing while fixed costs continue. Internet interruptions, pool outages, firmware faults, thermal shutdowns, maintenance, and delayed replacement parts all reduce realized output. A full-uptime model should be treated as a ceiling scenario.
Capital risk is also material. ASIC prices and resale values can move quickly when coin prices or difficulty change. Depreciation is economic, even when no cash leaves your account that day: an older machine can lose value or become uncompetitive as more efficient hardware arrives.
Finally, coin-denominated revenue introduces exchange-rate risk. Electricity bills are usually paid in fiat currency while rewards are earned in ZEC or BTC. A favorable mining calculation at one price can become negative without any change to the machine.
What does the evidence support—and what should remain qualified?
You can state confidently that Zcash uses Equihash, Bitcoin uses SHA-256, and their specialized ASICs are incompatible. You can cite the EIA’s 2023 Bitcoin estimate of 67–240 TWh, with a 120 TWh point estimate, while explaining its uncertainty. You can report Grayscale’s dated rig and reward modeling with its assumptions.
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You should not claim a numerical Zcash-versus-Bitcoin network electricity ratio from a Zcash machine’s wattage or reward-per-MWh figure. You should not describe 1.5625 newly minted ZEC as the amount every miner receives, ignore funding streams, or treat a pool payout as the protocol reward. And you should not call either named ASIC profitable without a dated calculation using the reader’s electricity rate, operating costs, and purchase price.
How we picked the comparison criteria
The comparison follows the decision points supported by the cited sources: proof-of-work algorithm and compatible ASIC, the distinction between device-level and network-level electricity measures, gross subsidy versus miner allocation and fees, pool payout terms, and the operating variables that determine profitability. The selection does not rank a machine by an independent test or promise a return; it ranks the questions a prospective miner must answer before committing capital.
What is the practical takeaway for a prospective miner?
Start with the algorithm, not the advertised coin return. A Zcash plan requires an Equihash ASIC and a current understanding of ZEC’s block-height-dependent subsidy and funding streams; a Bitcoin plan requires a SHA-256 ASIC and a different competitive environment. Then model your own electricity, cooling, uptime, pool deductions, and hardware depreciation.
Use Grayscale’s figures as dated context, not as a forecast. The Bitcoin network has a published EIA/Cambridge electricity estimate, but this evidence does not establish a comparable Zcash network total. Keeping those distinctions intact produces a less sensational but much more useful mining decision.
Frequently Asked Questions
Why can a Zcash rig show higher reward per megawatt-hour while Bitcoin has higher total rewards?
Per-machine and per-megawatt-hour figures describe the selected rigs under a model’s assumptions. Total network rewards reflect the size and aggregate hash power of the entire mining ecosystem, so the two measures can move in opposite directions without contradicting each other.
Do Zcash funding percentages stay the same after every upgrade?
Not necessarily. Funding streams and subsidy calculations are tied to protocol rules and block height, and SEC disclosures describe particular dates and upgrade contexts. Check the current protocol specification before using an old allocation in a new profitability model.
How often should I recalculate an ASIC mining estimate?
Recalculate whenever coin price, network difficulty, your electricity tariff, pool fees, or machine availability changes materially. A monthly review is a practical minimum for a live operation, while volatile markets may justify more frequent updates.
What happens to unpaid pool balances when I stop mining?
That depends on the pool’s minimum payout, payment schedule, and account-closure policy. Read the current terms before connecting hardware, and record the balance and withdrawal requirements if you switch providers.
