Solana

This architecture allows it to process thousands of transactions per second with sub-second finality, often at a cost of less than a penny per transaction. The network operates on a unique hybrid model that combines Proof of Stake with an innovation called Proof of History, which functions as a decentralized clock to timestamp transactions.

This system reduces the need for constant node communication, allowing the Sealevel engine to run non-conflicting smart contracts in parallel across multiple CPU cores. Further efficiency is gained through the Gulf Stream protocol, which reduces confirmation times by forwarding transactions to validators before the current block is finished.