db.x2iezn.2xlarge is an AWS RDS size with 8 vCPUs, 256 GiB memory. In US East (N. Virginia) it costs $3.036 per hour on demand ($2,216.28 per month) for Oracle Enterprise BYOL, Single-AZ; a 1-year reserved instance with no upfront costs $2.186 per hour, 28% less. It is sold in 4 regions.
Prices by region
USD per hour, Oracle Enterprise BYOL, Single-AZ. Reserved prices are no upfront, standard. Cheapest on-demand first.