TRON vs Ethereum

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Prerequisites

What is TRON

If you have built on Ethereum, this page highlights the differences that matter when developing on TRON. Both chains run Solidity smart contracts, but they differ significantly in consensus, fee structure, and resource management. Getting these straight upfront is what makes contract migration, SDK replacement, and operational tuning go right the first time.

Core comparison

Dimension	Ethereum	TRON
Consensus	Proof of Stake (PoS)	Delegated Proof of Stake (DPoS) — 27 elected Super Representatives
Block time	~12 seconds	3 seconds
Throughput	~30 TPS	2,000+ TPS
Fee model	Single resource: gas (ETH)	Dual resources: Resource Model
Free transactions	No	Yes — 600 free Bandwidth per day (~2 simple TRX transfers)
Fee payment	Always paid in ETH	Staked resources, with TRX burn as fallback
Native token	ETH	TRX
Address format	`0x` prefix (hex, 40 chars)	`T` prefix (Base58Check) or `41` prefix (hex)
VM	EVM	TVM (largely EVM-compatible)
Smart contract language	Solidity, Vyper	Solidity (differences)
Token standards	ERC-20, ERC-721, ERC-1155	TRC-20, TRC-721, TRC-1155 + TRC-10 (native, no TVM)
Governance	Off-chain (EIPs)	On-chain — committee proposals; off-chain TIPs
Node software	Geth, Prysm, etc.	java-tron

Fee model: the biggest difference

Ethereum has a single fee resource — gas — paid in ETH for every transaction. TRON splits this into two separate resources:

Bandwidth is consumed by every transaction and is roughly proportional to the transaction's byte size. Each account receives 600 free Bandwidth per day, enough for approximately 2 simple TRX transfers (a typical transfer consumes about 270 Bandwidth). Additional Bandwidth comes from staking TRX.

Energy is consumed only when executing smart contracts. It plays the same role as Ethereum's gas (metering computation). Energy comes only from staking TRX — there is no free daily Energy allowance.

If your account runs out of Bandwidth or Energy, the network burns TRX from your balance as a fallback (1,000 sun per Bandwidth, 100 sun per Energy at the current chain parameters). Transactions never fail purely from "out of resources" as long as you hold enough TRX — but staking is far more economical for repeated usage.

Migrating smart contracts

Most Solidity contracts written for Ethereum can be deployed on TRON with minimal changes. The key adjustments:

Address format. In off-chain code (deploy scripts, test fixtures, frontend), use TRON Base58Check addresses (T...). In Solidity code itself, addresses are still 20-byte address values, so contract logic does not change — only configuration and tooling.
Fee configuration. Replace gasLimit with feeLimit (in sun). See FeeLimit & Energy cost for sizing guidance.
Development tools. Replace Hardhat or Truffle with TronBox, and web3.js or ethers.js with TronWeb.
Compiler version. TRON's TVM supports Solidity up to 0.8.x. Pin your pragma to a specific version (no caret) and ensure your contracts compile with a TRON-supported compiler.

For a step-by-step migration walkthrough, see Migrating from Ethereum.

What TRON has that Ethereum does not

TRC-10 tokens — a native, system-level token standard that does not require the TVM. Issuing a TRC-10 costs only 1,024 TRX (the issuance fee, burned), and transfers are cheaper than TRC-20 transfers. A good fit for simple tokens that don't need complex on-chain logic.
Resource delegation — you can delegate your staked Bandwidth or Energy to other accounts, enabling business models where DApp operators cover users' transaction costs.
Contract Energy sharing — contract deployers can configure a percentage of Energy costs to be paid from their own staked resources, reducing friction for end users.
On-chain governance — network parameters can be modified through committee proposals voted on by the active SRs.

Related resources

Getting testnet tokens — request free TRX before porting your contracts
Migrating from Ethereum — the full migration walkthrough
Send your first transaction — the simplest possible TRON transaction in JavaScript or Java