db.m6in.metal is an AWS RDS size with 128 vCPUs, 512 GiB memory. In US East (N. Virginia) it costs $12.384 per hour on demand ($9,040.32 per month) for Oracle Enterprise BYOL, Single-AZ. It is sold in 8 regions.
Prices by region
USD per hour, Oracle Enterprise BYOL, Single-AZ. Reserved prices are no upfront, standard. Cheapest on-demand first.