PolkaVM (PVM) is a next-generation, RISC-V-based virtual machine designed by Polkadot to address the performance and scalability limitations of the Ethereum Virtual Machine
Polkadot Hub is introducing a dual-VM architecture to get the best of both worlds. It uses REVM to provide immediate, 100% EVM compatibility for existing Solidity apps, and PolkaVM (a next-gen RISC-V engine) for superior performance and low-cost execution.