Aurora DB instance classes - Amazon Aurora
DB instance class typesSupported DB enginesDetermining DB instance class support in Amazon Web Services RegionsHardware specifications
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Aurora DB instance classes

The DB instance class determines the computation and memory capacity of an Amazon Aurora DB instance. The DB instance class that you need depends on your processing power and memory requirements.

A DB instance class consists of both the DB instance class type and the size. For example, db.r6g is a memory-optimized DB instance class type powered by Amazon Graviton2 processors. Within the db.r6g instance class type, db.r6g.2xlarge is a DB instance class. The size of this class is 2xlarge.

DB instance class types

Amazon Aurora supports DB instance classes for the following use cases:

For more information about Amazon EC2 instance types, see Instance types in the Amazon EC2 documentation.

Aurora Serverless v2 instance class type

The following Aurora Serverless v2 type is available:

  • db.serverless – A special DB instance class type used by Aurora Serverless v2. Aurora adjusts the compute, memory, and network resources dynamically as the workload changes. For usage details, see Using Aurora Serverless v2.

Memory-optimized instance class type

The memory-optimized X family supports the following instance classes:

  • db.x2g – Instance classes optimized for memory-intensive applications and powered by Amazon Graviton2 processors. These instance classes offer low cost per GiB of memory.

    You can modify a DB instance to use one of the DB instance classes powered by Amazon Graviton2 processors. To do so, complete the same steps as with any other DB instance modification.

The memory-optimized R family supports the following instance class types:

  • db.r7g – Instance classes powered by Amazon Graviton3 processors. These instance classes are ideal for running memory-intensive workloads.

    You can modify a DB instance to use one of the DB instance classes powered by Amazon Graviton3 processors. To do so, complete the same steps as with any other DB instance modification.

  • db.r6g – Instance classes powered by Amazon Graviton2 processors. These instance classes are ideal for running memory-intensive workloads.

    You can modify a DB instance to use one of the DB instance classes powered by Amazon Graviton2 processors. To do so, complete the same steps as with any other DB instance modification.

  • db.r6i – Instance classes powered by 3rd Generation Intel Xeon Scalable processors. These instance classes are SAP-Certified and are an ideal fit for memory-intensive workloads in open-source databases such as MySQL and PostgreSQL.

  • db.r4 – These instance classes are supported only for Aurora PostgreSQL 11 and 12 versions. For all Aurora PostgreSQL DB clusters that use db.r4 DB instance classes, we recommend that you upgrade to a higher generation instance class as soon as possible.

    The db.r4 instance classes aren't available for the Aurora I/O-Optimized cluster storage configuration.

  • db.r3 – Instance classes that provide memory optimization.

    Amazon Aurora has started the end-of-life process for db.r3 DB instance classes using the following schedule, which includes upgrade recommendations. For all Aurora MySQL DB clusters that use db.r3 DB instance classes, we recommend that you upgrade to a db.r5 or higher DB instance class as soon as possible.

    Action or recommendation Dates

    You can no longer create Aurora MySQL DB clusters that use db.r3 DB instance classes.

    Now

    Amazon Aurora started automatic upgrades of Aurora MySQL DB clusters that use db.r3 DB instance classes to equivalent db.r5 or higher DB instance classes.

    January 31, 2023

Burstable-performance instance class types

The following burstable-performance DB instance class types are available:

  • db.t4g – General-purpose instance classes powered by Arm-based Amazon Graviton2 processors. These instance classes deliver better price performance than previous burstable-performance DB instance classes for a broad set of burstable general-purpose workloads. Amazon RDS db.t4g instances are configured for Unlimited mode. This means that they can burst beyond the baseline over a 24-hour window for an additional charge.

    You can modify a DB instance to use one of the DB instance classes powered by Amazon Graviton2 processors. To do so, complete the same steps as with any other DB instance modification.

  • db.t3 – Instance classes that provide a baseline performance level, with the ability to burst to full CPU usage. The db.t3 instances are configured for Unlimited mode. These instance classes provide more computing capacity than the previous db.t2 instance classes. They are powered by the Amazon Nitro System, a combination of dedicated hardware and lightweight hypervisor. We recommend using these instance classes only for development and test servers, or other non-production servers.

  • db.t2 – Instance classes that provide a baseline performance level, with the ability to burst to full CPU usage. The db.t2 instances are configured for Unlimited mode. We recommend using these instance classes only for development and test servers, or other non-production servers.

    The db.t2 instance classes aren't available for the Aurora I/O-Optimized cluster storage configuration.

Note

We recommend using the T DB instance classes only for development, test, or other nonproduction servers. For more detailed recommendations for the T instance classes, see Using T instance classes for development and testing.

For DB instance class hardware specifications, see Hardware specifications for DB instance classes for Aurora.

Optimized Reads instance class type

The following Optimized Reads instance class types are available:

  • db.r6gd – Instance classes powered by Amazon Graviton2 processors. These instance classes are ideal for running memory-intensive workloads and offer local NVMe-based SSD block-level storage for applications that need high-speed, low latency local storage.

  • db.r6id – Instance classes powered by 3rd Generation Intel Xeon Scalable processors. These instance classes are SAP-Certified and are an ideal fit for memory-intensive workloads. They offer a maximum memory of 1 TiB and up to 7.6 TB of direct-attached NVMe-based SSD storage.

Supported DB engines for DB instance classes

In the following table, you can find details about supported Amazon Aurora DB instance classes for the Aurora DB engines.

Instance class Aurora MySQL Aurora PostgreSQL
db.serverless – Aurora Serverless v2 instance class with automatic capacity scaling
db.serverless See Aurora Serverless v2 See Aurora Serverless v2
db.x2g – memory-optimized instance classes powered by Amazon Graviton2 processors
db.x2g.16xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.x2g.12xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.x2g.8xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.x2g.4xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.x2g.2xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.x2g.xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.x2g.large 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.r6gd – Optimized Reads instance classes powered by Amazon Graviton2 processors
db.r6gd.16xlarge No 15.4 and higher, 14.9 and higher
db.r6gd.12xlarge No 15.4 and higher, 14.9 and higher
db.r6gd.8xlarge No 15.4 and higher, 14.9 and higher
db.r6gd.4xlarge No 15.4 and higher, 14.9 and higher
db.r6gd.2xlarge No 15.4 and higher, 14.9 and higher
db.r6gd.xlarge No 15.4 and higher, 14.9 and higher
db.r6id – Optimized Reads instance classes
db.r6id.32xlarge No 15.4 and higher, 14.9 and higher
db.r6id.24xlarge No 15.4 and higher, 14.9 and higher
db.r7g – memory-optimized instance classes powered by Amazon Graviton3 processors
db.r7g.16xlarge 2.12.0 and higher, 3.03.1 and higher 15.2 and higher, 14.7 and higher, 13.10 and higher
db.r7g.12xlarge 2.12.0 and higher, 3.03.1 and higher 15.2 and higher, 14.7 and higher, 13.10 and higher
db.r7g.8xlarge 2.12.0 and higher, 3.03.1 and higher 15.2 and higher, 14.7 and higher, 13.10 and higher
db.r7g.4xlarge 2.12.0 and higher, 3.03.1 and higher 15.2 and higher, 14.7 and higher, 13.10 and higher
db.r7g.2xlarge 2.12.0 and higher, 3.03.1 and higher 15.2 and higher, 14.7 and higher, 13.10 and higher
db.r7g.xlarge 2.12.0 and higher, 3.03.1 and higher 15.2 and higher, 14.7 and higher, 13.10 and higher
db.r7g.large 2.12.0 and higher, 3.03.1 and higher 15.2 and higher, 14.7 and higher, 13.10 and higher
db.r6g – memory-optimized instance classes powered by Amazon Graviton2 processors
db.r6g.16xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.r6g.12xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.r6g.8xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.r6g.4xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.r6g.2xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.r6g.xlarge 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.r6g.large 2.09.2 and higher, 2.10.0 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.8 and higher, 11.9, 11.12 and higher
db.r6i – memory-optimized instance classes
db.r6i.32xlarge 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r6i.24xlarge 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r6i.16xlarge 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r6i.12xlarge 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r6i.8xlarge 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r6i.4xlarge 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r6i.2xlarge 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r6i.xlarge 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r6i.large 2.11.0 and higher, 3.02.1 and higher 15.2 and higher, 14.3 and higher, 13.5 and higher, 12.9 and higher
db.r5 – memory-optimized instance classes
db.r5.24xlarge All version 2.x; 3.01.0 and higher All currently available versions
db.r5.16xlarge All version 2.x; 3.01.0 and higher All currently available versions
db.r5.12xlarge All version 2.x; 3.01.0 and higher All currently available versions
db.r5.8xlarge All version 2.x; 3.01.0 and higher All currently available versions
db.r5.4xlarge All version 2.x; 3.01.0 and higher All currently available versions
db.r5.2xlarge All version 2.x; 3.01.0 and higher All currently available versions
db.r5.xlarge All version 2.x; 3.01.0 and higher All currently available versions
db.r5.large All version 2.x; 3.01.0 and higher All currently available versions
db.r4 – memory-optimized instance classes
db.r4.16xlarge All version 2.x; not supported in 3.01.0 and higher No
db.r4.8xlarge All version 2.x; not supported in 3.01.0 and higher No
db.r4.4xlarge All version 2.x; not supported in 3.01.0 and higher No
db.r4.2xlarge All version 2.x; not supported in 3.01.0 and higher No
db.r4.xlarge All version 2.x; not supported in 3.01.0 and higher No
db.r4.large All version 2.x; not supported in 3.01.0 and higher No
db.t4g – burstable-performance instance classes powered by Amazon Graviton2 processors
db.t4g.2xlarge No No
db.t4g.xlarge No No
db.t4g.large 2.11.1 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.7 and higher, 11.12 and higher
db.t4g.medium 2.11.1 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.7 and higher, 11.12 and higher
db.t4g.small No No
db.t3 – burstable-performance instance classes
db.t3.2xlarge No No
db.t3.xlarge No No
db.t3.large 2.11.1 and higher, 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.7 and higher, 11.12 and higher
db.t3.medium All 2.x versions; 3.01.0 and higher 15.2 and higher, 14.3 and higher, 13.3 and higher, 12.7 and higher, 11.12 and higher
db.t3.small All 2.x versions; not supported in 3.01.0 and higher No
db.t3.micro No No
db.t2 – burstable-performance instance classes
db.t2.medium All 2.x versions; not supported in 3.01.0 and higher No
db.t2.small All 2.x versions; not supported in 3.01.0 and higher No

Determining DB instance class support in Amazon Web Services Regions

To determine the DB instance classes supported by each DB engine in a specific Amazon Web Services Region, you can take one of several approaches. You can use the Amazon Web Services Management Console, the Amazon RDS Pricing page, or the describe-orderable-db-instance-options Amazon CLI command.

Note

When you perform operations with the Amazon Web Services Management Console, it automatically shows the supported DB instance classes for a specific DB engine, DB engine version, and Amazon Web Services Region. Examples of the operations that you can perform include creating and modifying a DB instance.

Using the Amazon RDS pricing page to determine DB instance class support in Amazon Web Services Regions

You can use the Amazon Aurora Pricing page to determine the DB instance classes supported by each DB engine in a specific Amazon Web Services Region.

To use the pricing page to determine the DB instance classes supported by each engine in a Region

  1. Go to Amazon Aurora Pricing.

  2. Choose an Amazon Aurora engine in the Amazon Pricing Calculator section.

  3. In Choose a Region, choose an Amazon Web Services Region.

  4. In Cluster Configuration Option, choose a configuration option.

  5. Use the section for compatible instances to view the supported DB instance classes.

  6. (Optional) Choose other options in the calculator, and then choose Save and view summary or Save and add service.

Using the Amazon CLI to determine DB instance class support in Amazon Web Services Regions

You can use the Amazon CLI to determine which DB instance classes are supported for specific DB engines and DB engine versions in an Amazon Web Services Region.

To use the Amazon CLI examples following, enter valid values for the DB engine, DB engine version, DB instance class, and Amazon Web Services Region. The following table shows the valid DB engine values.

Engine name Engine value in CLI commands More information about versions

MySQL 5.7-compatible and 8.0-compatible Aurora

aurora-mysql

Database engine updates for Amazon Aurora MySQL version 2 and Database engine updates for Amazon Aurora MySQL version 3 in the Release Notes for Aurora MySQL

Aurora PostgreSQL

aurora-postgresql

Release Notes for Aurora PostgreSQL

For information about Amazon Web Services Region names, see Amazon Regions.

The following examples demonstrate how to determine DB instance class support in an Amazon Web Services Region using the describe-orderable-db-instance-options Amazon CLI command.

Listing the DB instance classes that are supported by a specific DB engine version in an Amazon Web Services Region

To list the DB instance classes that are supported by a specific DB engine version in an Amazon Web Services Region, run the following command.

For Linux, macOS, or Unix:

aws rds describe-orderable-db-instance-options --engine engine --engine-version version \
    --query "OrderableDBInstanceOptions[].{DBInstanceClass:DBInstanceClass,SupportedEngineModes:SupportedEngineModes[0]}" \
    --output table \
    --region region

For Windows:

aws rds describe-orderable-db-instance-options --engine engine --engine-version version ^
    --query "OrderableDBInstanceOptions[].{DBInstanceClass:DBInstanceClass,SupportedEngineModes:SupportedEngineModes[0]}" ^
    --output table ^
    --region region

The output also shows the engine modes that are supported for each DB instance class.

For example, the following command lists the supported DB instance classes for version 13.6 of the Aurora PostgreSQL DB engine in US East (N. Virginia).

For Linux, macOS, or Unix:

aws rds describe-orderable-db-instance-options --engine aurora-postgresql --engine-version 15.3 \
    --query "OrderableDBInstanceOptions[].{DBInstanceClass:DBInstanceClass,SupportedEngineModes:SupportedEngineModes[0]}" \
    --output table \
    --region us-east-1

For Windows:

aws rds describe-orderable-db-instance-options --engine aurora-postgresql --engine-version 15.3 ^
    --query "OrderableDBInstanceOptions[].{DBInstanceClass:DBInstanceClass,SupportedEngineModes:SupportedEngineModes[0]}"  ^
    --output table ^
    --region us-east-1

Listing the DB engine versions that support a specific DB instance class in an Amazon Web Services Region

To list the DB engine versions that support a specific DB instance class in an Amazon Web Services Region, run the following command.

For Linux, macOS, or Unix:

aws rds describe-orderable-db-instance-options --engine engine --db-instance-class DB_instance_class \
    --query "OrderableDBInstanceOptions[].{EngineVersion:EngineVersion,SupportedEngineModes:SupportedEngineModes[0]}" \
    --output table \
    --region region

For Windows:

aws rds describe-orderable-db-instance-options --engine engine --db-instance-class DB_instance_class ^
    --query "OrderableDBInstanceOptions[].{EngineVersion:EngineVersion,SupportedEngineModes:SupportedEngineModes[0]}" ^
    --output table ^
    --region region

The output also shows the engine modes that are supported for each DB engine version.

For example, the following command lists the DB engine versions of the Aurora PostgreSQL DB engine that support the db.r5.large DB instance class in US East (N. Virginia).

For Linux, macOS, or Unix:

aws rds describe-orderable-db-instance-options --engine aurora-postgresql --db-instance-class db.r7g.large \
    --query "OrderableDBInstanceOptions[].{EngineVersion:EngineVersion,SupportedEngineModes:SupportedEngineModes[0]}" \
    --output table \
    --region us-east-1

For Windows:

aws rds describe-orderable-db-instance-options --engine aurora-postgresql --db-instance-class db.r7g.large ^
    --query "OrderableDBInstanceOptions[].{EngineVersion:EngineVersion,SupportedEngineModes:SupportedEngineModes[0]}" ^
    --output table ^
    --region us-east-1

Hardware specifications for DB instance classes for Aurora

The following terminology is used to describe hardware specifications for DB instance classes:

vCPU

The number of virtual central processing units (CPUs). A virtual CPU is a unit of capacity that you can use to compare DB instance classes. Instead of purchasing or leasing a particular processor to use for several months or years, you are renting capacity by the hour. Our goal is to make a consistent and specific amount of CPU capacity available, within the limits of the actual underlying hardware.

ECU

The relative measure of the integer processing power of an Amazon EC2 instance. To make it easy for developers to compare CPU capacity between different instance classes, we have defined an Amazon EC2 Compute Unit. The amount of CPU that is allocated to a particular instance is expressed in terms of these EC2 Compute Units. One ECU currently provides CPU capacity equivalent to a 1.0–1.2 GHz 2007 Opteron or 2007 Xeon processor.

Memory (GiB)

The RAM, in gibibytes, allocated to the DB instance. There is often a consistent ratio between memory and vCPU. As an example, take the db.r4 instance class, which has a memory to vCPU ratio similar to the db.r5 instance class. However, for most use cases the db.r5 instance class provides better, more consistent performance than the db.r4 instance class.

Max. EBS bandwidth (Mbps)

The maximum EBS bandwidth in megabits per second. Divide by 8 to get the expected throughput in megabytes per second.

Note

This figure refers to I/O bandwidth for local storage within the DB instance. It doesn't apply to communication with the Aurora cluster volume.

Network bandwidth

The network speed relative to other DB instance classes.

In the following table, you can find hardware details about the Amazon RDS DB instance classes for Aurora.

For information about Aurora DB engine support for each DB instance class, see Supported DB engines for DB instance classes.

Instance class vCPU ECU Memory (GiB) Max. bandwidth (Mbps) of local storage Network performance (Gbps)
db.x2g – memory-optimized instance classes
db.x2g.16xlarge 64 — 1024 19,000 25
db.x2g.12xlarge 48 — 768 14,250 20
db.x2g.8xlarge 32 — 512 9,500 12
db.x2g.4xlarge 16 — 256 4,750 Up to 10
db.x2g.2xlarge 8 — 128 Up to 4,750 Up to 10
db.x2g.xlarge 4 — 64 Up to 4,750 Up to 10
db.x2g.large 2 — 32 Up to 4,750 Up to 10
db.r7g – memory-optimized instance classes powered by Amazon Graviton3 processors
db.r7g.16xlarge 64 — 512 20,000 30
db.r7g.12xlarge 48 — 384 15,000 22.5
db.r7g.8xlarge 32 — 256 10,000 15
db.r7g.4xlarge 16 — 128 Up to 10,000 Up to 15
db.r7g.2xlarge 8 — 64 Up to 10,000 Up to 15
db.r7g.xlarge 4 — 32 Up to 10,000 Up to 12.5
db.r7g.large 2 — 16 Up to 10,000 Up to 12.5
db.r6g – memory-optimized instance classes powered by Amazon Graviton2 processors
db.r6g.16xlarge 64 — 512 19,000 25
db.r6g.12xlarge 48 — 384 13,500 20
db.r6g.8xlarge 32 — 256 9,000 12
db.r6g.4xlarge 16 — 128 4,750 Up to 10
db.r6g.2xlarge 8 — 64 Up to 4,750 Up to 10
db.r6g.xlarge 4 — 32 Up to 4,750 Up to 10
db.r6g.large 2 — 16 Up to 4,750 Up to 10
db.r6i – memory-optimized instance classes
db.r6i.32xlarge 128 — 1,024 40,000 50
db.r6i.24xlarge 96 — 768 30,000 37.5
db.r6i.16xlarge 64 — 512 20,000 25
db.r6i.12xlarge 48 — 384 15,000 18.75
db.r6i.8xlarge 32 — 256 10,000 12.5
db.r6i.4xlarge 16 — 128 Up to 10,000 Up to 12.5
db.r6i.2xlarge 8 — 64 Up to 10,000 Up to 12.5
db.r6i.xlarge 4 — 32 Up to 10,000 Up to 12.5
db.r6i.large 2 — 16 Up to 10,000 Up to 12.5
db.r5 – memory-optimized instance classes
db.r5.24xlarge 96 347 768 19,000 25
db.r5.16xlarge 64 264 512 13,600 20
db.r5.12xlarge 48 173 384 9,500 12
db.r5.8xlarge 32 132 256 6,800 10
db.r5.4xlarge 16 71 128 4,750 Up to 10
db.r5.2xlarge 8 38 64 Up to 4,750 Up to 10
db.r5.xlarge 4 19 32 Up to 4,750 Up to 10
db.r5.large 2 10 16 Up to 4,750 Up to 10
db.r4 – memory-optimized instance classes
db.r4.16xlarge 64 195 488 14,000 25
db.r4.8xlarge 32 99 244 7,000 10
db.r4.4xlarge 16 53 122 3,500 Up to 10
db.r4.2xlarge 8 27 61 1,700 Up to 10
db.r4.xlarge 4 13.5 30.5 850 Up to 10
db.r4.large 2 7 15.25 425 Up to 10
db.t4g – burstable-performance instance classes
db.t4g.large 2 — 8 Up to 2,780 Up to 5
db.t4g.medium 2 — 4 Up to 2,085 Up to 5
db.t3 – burstable-performance instance classes
db.t3.large 2 Variable 8 Up to 2,048 Up to 5
db.t3.medium 2 Variable 4 Up to 1,536 Up to 5
db.t3.small 2 Variable 2 Up to 1,536 Up to 5
db.t2 – burstable-performance instance classes
db.t2.medium 2 Variable 4 — Moderate
db.t2.small 1 Variable 2 — Low