Ethereum (ETH) co-founder Vitalik Buterin has proposed overhauling the blockchain’s smart contract infrastructure by replacing the Ethereum Virtual Machine (EVM) with RISC-V, a widely adopted open-source instruction set architecture. This shift aims to address one of Ethereum’s key scaling bottlenecks by dramatically improving the efficiency and simplicity of smart contract execution. Buterin Proposes Ditching EVM for RISC-V The proposal was detailed in a post on the Ethereum Magicians forum. In it, Buterin suggested that smart contracts could eventually be compiled to RISC-V rather than EVM bytecode
source: https://beincrypto.com/ethereum-riscv-vitalik-buterin-proposal/