Cardano vs Sui

Cardano uses the Ouroboros Proof‑of‑Stake protocol and an Extended‑UTxO ledger that enables deterministic smart contracts in Plutus and Aiken. Its ‘Basho’ scaling era introduced Hydra Head sidechains capable of 1000 TPS per head, and Mithril light‑client proofs for mobile wallets. Over 1 500 stake pools secure the network and participate in on‑chain treasury governance.

Sui employs an object‑based data model and Narwhal/Tusk DAG consensus to execute independent transactions in parallel, giving near‑instant finality. Programmability uses the Move‑based Sui language with object ownership, enabling upgrades without storage migrations. The network supports sponsored transactions, letting dApps pay gas on behalf of users—a boon for mobile onboarding.