> For the complete documentation index, see [llms.txt](https://v2tech.noahlabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v2tech.noahlabs.io/6.noah-chain-4.0-the-ultimate-performance-of-heterogeneous-public-chains/6.1-rationale-why-heterogeneous-dual-engine.md).

# 6.1 Rationale: Why Heterogeneous Dual Engine

Traditional single-chain systems like Ethereum cannot simultaneously address the threefold dilemma of decentralization, security, and high performance. Noah Chain 4.0 achieves heterogeneous optimization by separating computation (EVM) from storage (IPFS).