Starting November 21, 2024, ApsaraDB RDS for PostgreSQL standard instances running RDS High-availability Edition support nine new dedicated instance types, scaling up to 192 CPU cores, 1,536 GB memory, 500,000 IOPS, and 4,096 MB/s I/O bandwidth.
Effective date
November 21, 2024
New instance types
Instance type names follow a consistent pattern: pg.x{ratio}.{size}.2c, where {ratio} indicates the memory-to-CPU ratio — x2 for 2 GB per core, x4 for 4 GB per core, and x8 for 8 GB per core. Use the ratio to match an instance type to your workload's memory requirements.
The following table lists the new instance types available for the primary instance of RDS for PostgreSQL standard instances running RDS High-availability Edition.
| Edition | Instance family | Instance type | CPU cores and memory | Max connections | Max IOPS | Max I/O bandwidth (MB/s) |
|---|---|---|---|---|---|---|
| High-availability Edition | Dedicated | pg.x2.12xlarge.2c | 96 cores, 192 GB | 19,200 | 240,000 | 2,048 |
| pg.x4.12xlarge.2c | 96 cores, 384 GB | 38,400 | 240,000 | 2,048 | ||
| pg.x8.12xlarge.2c | 96 cores, 768 GB | 76,800 | 240,000 | 2,048 | ||
| pg.x2.16xlarge.2c | 128 cores, 256 GB | 25,600 | 320,000 | 2,560 | ||
| pg.x4.16xlarge.2c | 128 cores, 512 GB | 51,200 | 320,000 | 2,560 | ||
| pg.x8.16xlarge.2c | 128 cores, 1,024 GB | 102,400 | 320,000 | 2,560 | ||
| pg.x2.24xlarge.2c | 192 cores, 384 GB | 38,400 | 500,000 | 4,096 | ||
| pg.x4.24xlarge.2c | 192 cores, 768 GB | 76,800 | 500,000 | 4,096 | ||
| pg.x8.24xlarge.2c | 192 cores, 1,536 GB | 153,600 | 500,000 | 4,096 |
Billing
Pricing is based on the instance type's resource specifications and the region where your RDS instance runs. For exact prices, visit the buy page of ApsaraDB RDS for PostgreSQL.
What's next
To create a primary instance using one of the new instance types, see Create an ApsaraDB RDS for PostgreSQL instance.
To change an existing instance to one of the new instance types, see Change instance specifications.