Standard_E64bds_v5 is an Azure Database for PostgreSQL & MySQL size with 64 vCPUs, 512 GiB memory. In Central US it costs $9.216 per hour on demand ($6,727.68 per month) for PostgreSQL, Single server. It is sold in 2 regions; the cheapest is East US 2 at $8.00 per hour.
Prices by region
USD per hour, PostgreSQL, Single server. Reserved prices are no upfront, standard. Cheapest on-demand first.