Instances AWS RDS db.r8a.4xlarge db.r8a.4xlarge
db.r8a.4xlarge is an AWS RDS size with 8 vCPUs, 128 GiB memory (5th Generation AMD EPYC). In US East (N. Virginia) it costs $2.415 per hour on demand ($1,763.10 per month) for PostgreSQL, Single-AZ; a 1-year Database Savings Plan costs $1.932 per hour, 20% less. It is sold in 9 regions.
USD per hour, PostgreSQL, Single-AZ. Reserved prices are no upfront, standard. Cheapest on-demand first.
Prices by engine and deployment in US East (N. Virginia) Option On-demand /hr 1-yr reserved /hr 3-yr reserved /hr PostgreSQL · Single-AZ $2.415 – – PostgreSQL · Multi-AZ $4.83 – – SQL Server Enterprise · Single-AZ $2.302 – – SQL Server Enterprise BYOM · Single-AZ $2.302 – – SQL Server Enterprise BYOM Unbundled · Single-AZ $2.302 – – SQL Server Enterprise Developer BYOM · Single-AZ $2.302 – – SQL Server Enterprise Developer BYOM Unbundled · Single-AZ $2.302 – – SQL Server Enterprise Unbundled · Single-AZ $2.302 – – SQL Server Standard · Single-AZ $2.302 – – SQL Server Standard BYOM · Single-AZ $2.302 – – SQL Server Standard BYOM Unbundled · Single-AZ $2.302 – – SQL Server Standard Developer BYOM · Single-AZ $2.302 – – SQL Server Standard Developer BYOM Unbundled · Single-AZ $2.302 – – SQL Server Standard Unbundled · Single-AZ $2.302 – – SQL Server Web · Single-AZ $2.302 – – SQL Server Web Unbundled · Single-AZ $2.302 – – MariaDB · Single-AZ $2.415 – – MySQL · Single-AZ $2.415 – – Aurora MySQL · Single-AZ $2.802 – – Aurora PostgreSQL · Single-AZ $2.802 – – Aurora MySQL I/O Optimized · Single-AZ $3.642 – – Aurora PostgreSQL I/O Optimized · Single-AZ $3.642 – – SQL Server Enterprise BYOM Unbundled · Multi-AZ $4.604 – – SQL Server Enterprise Developer BYOM Unbundled · Multi-AZ $4.604 – – SQL Server Enterprise Unbundled · Multi-AZ $4.604 – – SQL Server Standard BYOM Unbundled · Multi-AZ $4.604 – – SQL Server Standard Unbundled · Multi-AZ $4.604 – – SQL Server Web Unbundled · Multi-AZ $4.604 – – MariaDB · Multi-AZ $4.83 – – MySQL · Multi-AZ $4.83 – –
Compute Value vCPUs 8 Physical cores 16 Threads per core 1 Architecture x86_64 Processor 5th Generation AMD EPYC CPU maker AMD Sustained clock 4.5 GHz Burstable No
Memory Value Memory (GiB) 128
Networking Value Network Up to 15 Gbps Network baseline 7.5 Gbps Network peak 15 Gbps
Storage Value Storage EBS Only EBS baseline bandwidth 5,000 Mbps EBS max bandwidth 10,000 Mbps EBS baseline throughput 625 MB/s EBS max throughput 1,250 MB/s EBS baseline IOPS 20,000 EBS max IOPS 40,000
Instance details Value Instance type db.r8a.4xlarge Family r8a Category Memory optimized Current generation Yes
Other Value Hardware Basis r8a.4xlarge
Other processors
Compute and memory optimized
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS RDS sizes .