AWS RDS db.t4g.micro pricing breakdown

• Entry-level RDS instances start at $11.68/mo for a modest 1 GB of RAM, while high-tier configurations reach $94.17/mo with 8 GB of memory.
• The standard egress allowance is capped at 100 GB per month, with any traffic exceeding this quota billed at $0.09/GB.
• Provisioned storage overages are taxed at a flat rate of $0.12/GB, which is standard for managed database environments.
• Hardware parity is roughly equivalent to what you would find on self-managed EC2 nodes running AMD EPYC processors, though you lose root access to the underlying OS.

Managing database costs in RDS requires close attention to the storage and bandwidth thresholds. While the base monthly rates appear competitive when compared to smaller providers like Linode or Vultr, the real expense materializes when your application hits high read-write ratios. Because RDS abstracts away the underlying hardware maintenance—such as patching and automated backups—you are paying a premium for the convenience of a managed lifecycle. If your dataset grows beyond your initial provisioned disk, that $0.12/GB overage charge compounds quickly. Most ops teams find that keeping an eye on the 100 GB egress limit is the most effective way to prevent surprise billing spikes, especially when dealing with analytical workloads that pull large result sets from the database to external application servers.

RDS is a standard choice for teams that need high-availability database replication without the burden of manual failover orchestration. It scales well for internal tooling or microservices where the primary goal is minimizing downtime rather than achieving the absolute lowest cost per gigabyte of storage. Given the predictable nature of AWS pricing, these instances work best for applications with stable traffic patterns where you can accurately estimate your monthly disk and network consumption before deployment.