Sui vs Near: How Two Blockchain Networks Are Taking Different Roads to Scalable Infrastructure

TLDR: Sui finalizes independent transactions in 0.4–0.5 seconds using an object-centric parallel execution model. Near’s dynamic sharding allows the network itself to expand capacity as on-chain demand increases over time. Stablecoins make up 40–50% of Sui’s DeFi activity, with total DeFi value surpassing $2 billion in 2025. Near’s Confidential Intents launched in early 2026, enabling private cross-chain execution and AI-agent automation. Sui and Near are two blockchain networks that both promise high throughput, low fees, and horizontal scalability. They are often grouped as competitors in the same category. However, their underlying architectures reflect very different assumptions about how blockchain demand will grow. Those architectural differences determine what type of activity each network can sustainably support. Understanding these differences helps investors and developers make more informed decisions about where to build or allocate capital. Architecture and Throughput: Where the Two Networks Diverge Sui is built around an object-centric model that treats assets as independent objects. When two transactions do not touch the same object, they skip full consensus and execute in parallel. Only transactions involving shared objects enter the full consensus path. This design allows simple transfers to finalize in the 0.4 to 0.5 second range. As hardware improves, execution capacity on Sui scales accordingly. Near takes a different structural approach by partitioning the network itself through sharding. State is split across shards, and validators are assigned to specific shard segments. The protocol can dynamically reshard as demand increases, and finality typically lands between 0.6 and 1.3 seconds. Developers on Near interact with a protocol that manages scaling internally, reducing the need to handle partition logic manually. In real-time conditions, neither network is currently constrained by throughput. Observed TPS on Sui ranges around the mid-20s, wh...