RDS for Oracle DB instance classes - Amazon Relational Database Service
Supported instance classesDeprecated Oracle instance classes
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RDS for Oracle DB instance classes

The computation and memory capacity of an RDS for Oracle DB instance is determined by its instance class. The DB instance class you need depends on your processing power and memory requirements.

Supported RDS for Oracle DB instance classes

The supported RDS for Oracle instance classes are a subset of the RDS DB instance classes. For the complete list of RDS instance classes, see DB instance classes.

RDS for Oracle preconfigured DB instance classes

RDS for Oracle also offers instance classes that are preconfigured for workloads that require additional memory, storage, and I/O per vCPU. These instance classes use the following naming convention:

db.r5b.instance_size.tpcthreads_per_core.memratio
db.r5.instance_size.tpcthreads_per_core.memratio

The following is an example of an instance class that is preconfigured for additional memory:

db.r5b.4xlarge.tpc2.mem2x

The components of the preceding instance class name are as follows:

  • db.r5b.4xlarge – The name of the instance class.

  • tpc2 – The threads per core. A value of 2 means that multithreading is turned on. A value of 1 means that multithreading is turned off.

  • mem2x – The ratio of additional memory to the standard memory for the instance class. In this example, the optimization provides twice as much memory as a standard db.r5.4xlarge DB instance.

Supported edition, instance class, and licensing combinations in RDS for Oracle

If you're using the RDS console, you can find out whether a specific edition, instance class, and license combination is supported by choosing Create database and specifying different option. In the Amazon CLI, you can run the following command:

aws rds describe-orderable-db-instance-options --engine engine-type --license-model license-type

The following table lists all editions, instance classes, and license types supported for RDS for Oracle. For information about the memory attributes of each type, see RDS for Oracle instance types. For information about pricing, see Amazon RDS for Oracle pricing models.

Oracle edition Oracle Database 19c and higher

Enterprise Edition (EE)

Bring Your Own License (BYOL)

Standard instance classes

db.m7i.large–db.m7i.48xlarge

db.m6i.large–db.m6i.32xlarge

db.m5d.large–db.m5d.24xlarge

db.m5.large–db.m5.24xlarge

Memory optimized instance classes

db.r7i.large–db.r7i.48xlarge

db.r6i.large–db.r6i.32xlarge

db.r5d.large–db.r5d.24xlarge

db.r5b.large–db.r5b.24xlarge

db.r5.large–db.r5.24xlarge

db.x2iedn.xlarge–db.x2iedn.32xlarge

db.x2iezn.2xlarge–db.x2iezn.12xlarge

db.x2idn.16xlarge–db.x2idn.32xlarge

db.x1e.xlarge–db.x1e.32xlarge1

db.x1.16xlarge–db.x1.32xlarge1

db.z1d.large–db.z1d.12xlarge

Memory optimized preconfigured instance classes

db.r6i.8xlarge.tpc2.mem4x

db.r6i.8xlarge.tpc2.mem3x

db.r6i.6xlarge.tpc2.mem4x

db.r6i.4xlarge.tpc2.mem4x

db.r6i.4xlarge.tpc2.mem3x

db.r6i.4xlarge.tpc2.mem2x

db.r6i.2xlarge.tpc2.mem8x

db.r6i.2xlarge.tpc2.mem4x

db.r6i.2xlarge.tpc1.mem2x

db.r6i.xlarge.tpc2.mem4x

db.r6i.xlarge.tpc2.mem2x

db.r6i.large.tpc1.mem2x

db.r5b.8xlarge.tpc2.mem3x

db.r5b.6xlarge.tpc2.mem4x

db.r5b.4xlarge.tpc2.mem4x

db.r5b.4xlarge.tpc2.mem3x

db.r5b.4xlarge.tpc2.mem2x

db.r5b.2xlarge.tpc2.mem8x

db.r5b.2xlarge.tpc2.mem4x

db.r5b.2xlarge.tpc1.mem2x

db.r5b.xlarge.tpc2.mem4x

db.r5b.xlarge.tpc2.mem2x

db.r5b.large.tpc1.mem2x

db.r5.12xlarge.tpc2.mem2x

db.r5.8xlarge.tpc2.mem3x

db.r5.6xlarge.tpc2.mem4x

db.r5.4xlarge.tpc2.mem4x

db.r5.4xlarge.tpc2.mem3x

db.r5.4xlarge.tpc2.mem2x

db.r5.2xlarge.tpc2.mem8x

db.r5.2xlarge.tpc2.mem4x

db.r5.2xlarge.tpc1.mem2x

db.r5.xlarge.tpc2.mem4x

db.r5.xlarge.tpc2.mem2x

db.r5.large.tpc1.mem2x

Burstable performance instance classes

db.t3.small–db.t3.2xlarge

Standard Edition 2 (SE2)

Bring Your Own License (BYOL)

Standard instance classes

db.m7i.large–db.m7i.4xlarge

db.m6i.large–db.m6i.4xlarge

db.m5d.large–db.m5d.4xlarge

db.m5.large–db.m5.4xlarge

Memory optimized instance classes

db.r7i.large–db.r7i.4xlarge

db.r6i.large–db.r6i.4xlarge

db.r5d.large–db.r5d.4xlarge

db.r5b.large–db.r5b.4xlarge

db.r5.large–db.r5.4xlarge

db.x2iedn.xlarge–db.x2iedn.4xlarge

db.x2iezn.2xlarge–db.x2iezn.4xlarge

db.z1d.large–db.z1d.3xlarge

Memory optimized preconfigured instance classes

db.r6i.4xlarge.tpc2.mem4x

db.r6i.4xlarge.tpc2.mem3x

db.r6i.4xlarge.tpc2.mem2x

db.r6i.2xlarge.tpc2.mem8x

db.r6i.2xlarge.tpc2.mem4x

db.r6i.2xlarge.tpc1.mem2x

db.r6i.xlarge.tpc2.mem4x

db.r6i.xlarge.tpc2.mem2x

db.r6i.large.tpc1.mem2x

db.r5.4xlarge.tpc2.mem4x

db.r5.4xlarge.tpc2.mem3x

db.r5.4xlarge.tpc2.mem2x

db.r5.2xlarge.tpc2.mem8x

db.r5.2xlarge.tpc2.mem4x

db.r5.2xlarge.tpc1.mem2x

db.r5.xlarge.tpc2.mem4x

db.r5.xlarge.tpc2.mem2x

db.r5.large.tpc1.mem2x

Burstable performance instance classes

db.t3.small–db.t3.2xlarge

Standard Edition 2 (SE2)

License Included

Standard instance classes

db.m5.large–db.m5.4xlarge

Memory optimized instance classes

db.r6i.large–db.r6i.4xlarge

db.r5.large–db.r5.4xlarge

Burstable performance instance classes

db.t3.small–db.t3.2xlarge

1 You can no longer create RDS for Oracle DB instances using the X1 instance class family. If you currently use X1 classes, switch to a new generation instance class as soon as possible. Starting on January 22, 2025, RDS begins automated upgrades in your defined maintenance window. During the upgrade, RDS chooses the equivalent X2iedn instance type and upgrades it. For more information, see the re:Post article Amazon RDS for Oracle is ending support for X1 Database Instances on January 22, 2025.

Note

We encourage all BYOL customers to consult their licensing agreement to assess the impact of Amazon RDS for Oracle deprecations. For more information on the compute capacity of DB instance classes supported by RDS for Oracle, see DB instance classes and Configuring the processor for a DB instance class in RDS for Oracle.

Note

If you have DB snapshots of DB instances that were using deprecated DB instance classes, you can choose a DB instance class that is not deprecated when you restore the DB snapshots. For more information, see Restoring to a DB instance.

Deprecated RDS for Oracle DB instance classes

The following DB instance classes are deprecated for RDS for Oracle:

  • db.m1, db.m2, db.m3, db.m4

  • db.t1, db.t2

  • db.r1, db.r2, db.r3, db.r4

The preceding DB instance classes have been replaced by better performing DB instance classes that are generally available at a lower cost. If you have DB instances that use deprecated DB instance classes, you have the following options:

  • Allow Amazon RDS to modify each DB instance automatically to use a comparable non-deprecated DB instance class. For deprecation timelines, see DB instance class types.

  • Change the DB instance class yourself by modifying the DB instance. For more information, see Modifying an Amazon RDS DB instance.

If you have DB snapshots of DB instances that were using deprecated DB instance classes, you can choose a DB instance class that is not deprecated when you restore the DB snapshots. For more information, see Restoring to a DB instance.