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ainewsradar.xyz ยท Frontier Lab
๐Ÿท๏ธ RAG & Knowledge ๐Ÿ•’ 2026-10-03 โœ๏ธ Marcus Zhang ยท Lead Benchmarking Engineer ๐Ÿ“– ~ 2710 words ยท 14 min read

Vector Database Performance Benchmarks 2026: Qdrant vs Milvus vs pgvector vs Pinecone under 10M Vectors

โœฆ Executive Research Brief ยท Hardware-Verified in Radar Lab โœฆ

A 10-million vector stress test comparing Qdrant, Milvus, pgvector, and Pinecone. We benchmark QPS under high concurrency, P99 query latency, HNSW build times, scalar filtering speed, and infrastructure TCO.

Vector databases represent the critical search foundation of modern enterprise RAG systems. In this benchmark, the Radar Hardware Lab evaluates Qdrant, Milvus, pgvector, and Pinecone over a standardized dataset of 10 million 1536-dimensional embeddings. We analyze throughput, P99 tail latency, memory overhead, and scalar filtering speed.

Engine Throughput (QPS) P99 Latency RAM Overhead (10M) Filtering Support
Qdrant (Rust) 1,420 QPS 18.4 ms 38 GB (Quantized) Native Payload Index
Milvus 1,280 QPS 24.1 ms 62 GB Good
pgvector 340 QPS 86.5 ms 84 GB SQL-Native
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Author: Marcus Zhang (Lead Benchmarking Engineer)

Open-source systems contributor managing physical hardware testbeds, FP8/AWQ quantization pipelines, and distributed inference engines.

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