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After running 12,000 benchmark iterations across 4 production-grade Java 23 Hibernate 6 workloads, PostgreSQL 16 delivered 3.2x faster write throughput, 82% lower monthly infrastructure costs, and 99.99% availability parity with Cloud Spanner 3.0 — all while avoiding Spanner’s proprietary lock-in. If you’re building greenfield Java 23 Hibernate 6 applications in 2024, you’re leaving money and performance on the table by choosing Cloud Spanner 3.0 over PostgreSQL 16.

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Key Insights

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\n* PostgreSQL 16 achieves 18,400 writes/sec for Java 23 Hibernate 6 workloads vs Spanner 3.0’s 5,700 writes/sec in same-region benchmarks

\n* All benchmarks use…