GraphRAG Analysis, Part 2: Graph Creation and Retrieval vs Vector Database Retrieval - Blog | MLOps Community
GraphRAG (by way of Neo4j in this case) enhances faithfulness (a RAGAS metric most similar to precision) when compared to vector-based RAG, but does not significantly lift other RAGAS metrics related to retrieval; may not offer enough ROI to justify the hype of the accuracy benefits given the performance overhead.