Migration to Graviton 5: What upgrading our ClickHouse cluster actually accomplished

We recently upgraded one of our production ClickHouse database clusters from m8g.48xlarge instances to the newer m9g.48xlarge generation. To ensure a fair “apples-to-apples” comparison, we kept the core count, memory, and storage configuration identical. While the new servers cost 9% more per hour, the upgrade was a clear win.