Ethereum introduces EIP-7983 to limit gas usage per transaction to a maximum of 16.77 million to enhance security and network stability.
This proposal helps limit denial-of-service (DoS) attacks, enhances scalability, and ensures compatibility with zero-knowledge virtual machines, contributing to improved performance for complex DeFi applications and Smart Contracts on Ethereum.
MAIN CONTENT
EIP-7983 limits gas usage per transaction to a maximum of 16.77 million, effectively preventing DoS.
The new limit supports Ethereum's compatibility with zkVM, promoting network scalability.
The proposal balances performance and security, not significantly affecting the majority of users.
How does Ethereum limit gas per transaction to combat DoS?
According to Vitalik Buterin – co-founder of Ethereum: setting the gas limit at 16.77 million for a transaction helps prevent transactions from consuming an entire block, reducing the risk of DoS attacks and increasing stability.
Previously, a transaction could use the entire gas limit of a block, causing network congestion and instability. EIP-7983 prevents this by rejecting transactions that exceed the allowed gas limit during block confirmation, helping the network avoid overload and operate more smoothly.
How does EIP-7983 contribute to Ethereum's scaling with zkVM?
The gas limit supports Ethereum's compatibility with zero-knowledge virtual machines (zkVM), a key technology for scaling the network without compromising security.
Alva, a deep research platform, notes that the gas limit helps Ethereum maintain performance when processing large transactions that need to be broken down, while also strengthening stability, minimizing DoS attack risks, and promoting the ability to run advanced DeFi applications and more complex Smart Contracts.
This limit helps narrow Ethereum's attack surface without affecting regular transactions, forcing whales and complex dApps to optimize their execution of large transactions. This contributes to reducing gas volatility and improving the predictability of transaction costs.
Alva, Blockchain research platform, July 2025
Why was the gas limit of 16.77 million chosen?
The limit of 16.77 million gas was determined based on thorough analysis, large enough to meet most current use cases such as deploying smart contracts or complex DeFi transactions, yet low enough to minimize risks from overload transactions.
Most transactions today do not exceed this limit, therefore the changes will not significantly affect users or developers, although some individual transactions may need to be adjusted to comply with the new limit.
What long-term strategy does EIP-7983 fit into for Ethereum?
This is the next step in a series of proposals aimed at simplifying and optimizing Ethereum's core protocol, in line with Vitalik Buterin's vision of reducing complexity, cutting development costs, and enhancing network security.
Vitalik has emphasized the comprehensive overhaul of consensus, execution, and identity layers in the coming years to build a more efficient and powerful Ethereum. The gas limit is a practical step to address current issues while laying the groundwork for future improvements.
We are gradually simplifying and strengthening Ethereum to align with new technological trends and scalability demands in the near future.
Vitalik Buterin, co-founder of Ethereum, stated in 2025
Frequently Asked Questions
Does EIP-7983 affect regular users? No, most transactions today are within the new gas limit, so regular users are not significantly impacted.
Does the gas limit effectively help prevent DoS? Yes, this limit prevents transactions from using the entire block gas, reducing the risk of denial-of-service attacks.
How does EIP-7983 support Ethereum's scaling? The limit helps Ethereum better align with zkVM, an important technology for scaling the network.
Which transactions need to change due to the gas limit? Particularly large transactions or complex dApps may need to break down transactions to comply with the limit.
What does Vitalik Buterin think about EIP-7983? This is an important step to reduce Ethereum's complexity, enhance security, and improve operational efficiency.
Source: https://tintucbitcoin.com/gioi-han-phi-gas-ethereum-giai-thich/
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