ClickHouse ® vs BigQuery: real-time analytics comparison 2025

When selecting an analytical database for real-time analytics, ClickHouse® and BigQuery offer distinct advantages based on their architecture, performance, and cost models. ClickHouse® is an open-source columnar database known for its coupling of storage and compute on the same nodes, which minimizes network overhead and enhances query performance for real-time workloads. It supports multiple compression algorithms and provides efficient query processing through vectorized execution and materialized views, making it suitable for high-concurrency scenarios with predictable latency. In contrast, BigQuery, Google's serverless data warehouse, separates compute and storage, allowing for dynamic resource allocation without pre-provisioning, which is ideal for large-scale, ad-hoc analytics. While it excels in handling exploratory queries and integrates well with Google's AI tools, its slot-based scheduling can introduce variable latency. ClickHouse® further offers flexibility with deployment and operational control, supporting self-hosted and managed services like Tinybird, which simplifies cluster management and API integration. Each database presents specific benefits: ClickHouse® for real-time, user-facing applications, and BigQuery for flexible, serverless analytics, with the choice largely dependent on the performance needs and operational preferences of the user.