Ethereum vs Solana

Key differences

Ethereum and Solana are the two most prominent Layer 1 smart-contract platforms, but they scale differently. Ethereum, launched in 2015, prioritizes decentralization and security at the base layer, pushing high-volume activity to Layer 2 rollups that settle back to mainnet. Solana keeps everything on a single unified ledger, explicitly avoiding sharding and extra layers to prevent liquidity fragmentation, and aims for high throughput directly on the base chain.

Both use Proof of Stake, but Solana pairs it with Proof of History, a cryptographic clock that orders transactions and enables thousands of transactions per second with sub-second finality, typically costing under a cent. Ethereum's base layer processes fewer transactions with longer finality, with a very large permissionless validator set; it moved from Proof of Work to Proof of Stake in September 2022.

Neither asset has a maximum supply, but their mechanics differ. ETH issuance goes to validators while a portion of every fee is burned, leaving supply near 120.7 million and sensitive to network activity. SOL follows an inflation schedule paid to stakers, with about 582 million of roughly 632 million total tokens circulating.

Ecosystem roles overlap but with different centers of gravity: Ethereum hosts the deepest DeFi liquidity, stablecoin supply, and institutional tokenization, plus a broad Layer 2 ecosystem, while Solana has built strength in high-frequency trading applications, consumer apps, and low-cost payments.