Polygon

Polygon PoS vs Polygon zkEVM: Full Comparison

Updated 2025
Architecture & Consensus

What Is Polygon PoS?

Polygon PoS (formerly Matic Network) is a Layer 2 scaling solution for Ethereum. It uses a Proof-of-Stake (PoS) consensus mechanism combined with the Plasma framework to create a sidechain that runs parallel to the Ethereum mainnet. Transactions are processed off-chain and then committed to Ethereum, significantly reducing congestion and gas costs. The network is secured by approximately 100 validators who stake MATIC tokens, enabling fast transaction times and high throughput reaching up to 7,000 TPS.

What Is Polygon zkEVM?

Polygon zkEVM is a Zero-Knowledge Rollup Layer 2 solution that leverages zero-knowledge proofs to validate transactions without revealing underlying data. Unlike Polygon PoS, it operates directly on top of Ethereum and inherits the mainnet's full security guarantees. zkEVM achieves EVM equivalence — meaning existing Ethereum smart contracts can be deployed without any modifications — making it the most developer-friendly rollup available. Cryptographic proofs are generated and submitted on-chain to confirm transaction validity.

Architecture Comparison

Polygon PoS uses a Plasma framework and functions as a PoS sidechain running parallel to Ethereum. It provides a separate network that increases bandwidth for transactions, lowering fees and increasing throughput. Polygon zkEVM leverages a ZK-Rollup architecture: complex computations occur off-chain while cryptographic proofs are generated and submitted on-chain. This fundamental architectural difference defines the trade-off between throughput and security that exists between the two networks.

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