PostgreSQL Sizing Cheat Sheet

What RDS instance do you actually need? I benchmarked every major AWS RDS PostgreSQL instance with pgbench. Get the free PDF — measured RPS, latency, and cost per 1k requests, broken down by workload type (read-heavy, write-heavy, mixed).

• Every db.t3, db.m6g, db.r6g, db.r7g size measured
• The point where your working set stops fitting in RAM
• Cost per 1k requests so you can compare options at a glance