Instances AWS RDS db.r5b.xlarge db.r5b.xlarge
db.r5b.xlarge is an AWS RDS size with 4 vCPUs, 32 GiB memory (Intel Xeon Platinum 8000 series). In US East (N. Virginia) it costs $0.592 per hour on demand ($432.16 per month) for PostgreSQL, Single-AZ; a 1-year reserved instance with no upfront costs $0.3429 per hour, 42% less. It is sold in 14 regions; the cheapest is EU (Stockholm) at $0.584 per hour.
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 $0.592 $0.3429 – PostgreSQL · Multi-AZ $1.184 $0.6858 – Oracle Enterprise BYOL · Single-AZ $0.551 – – Oracle Enterprise BYOL BYOM · Single-AZ $0.551 $0.3473 – Oracle Standard Two BYOL · Single-AZ $0.551 $0.3473 – Oracle Enterprise BYOL BYOM Custom · Single-AZ $0.552 – – Oracle Standard Two BYOL BYOM Custom · Single-AZ $0.552 – – MariaDB · Single-AZ $0.592 $0.3429 – MySQL · Single-AZ $0.592 $0.3429 – SQL Server Developer BYOM Custom · Single-AZ $0.836 – – SQL Server Enterprise BYOM Custom · Single-AZ $0.836 – – SQL Server Standard BYOM Custom · Single-AZ $0.836 – – SQL Server Web · Single-AZ $0.963 $0.8085 – SQL Server Web Custom · Single-AZ $0.963 – – Oracle Enterprise BYOL BYOM · Multi-AZ $1.103 $0.6946 – Oracle Standard Two BYOL · Multi-AZ $1.103 $0.6946 – Oracle Enterprise BYOL BYOM Custom · Multi-AZ $1.104 – – Oracle Standard Two BYOL BYOM Custom · Multi-AZ $1.104 – – MariaDB · Multi-AZ $1.184 $0.6858 – MySQL · Multi-AZ $1.184 $0.6858 – SQL Server Standard · Single-AZ $1.587 $1.50 – SQL Server Standard Custom · Single-AZ $1.587 – – SQL Server Developer BYOM Custom · Multi-AZ $1.672 – – SQL Server Enterprise BYOM Custom · Multi-AZ $1.672 – – SQL Server Standard BYOM Custom · Multi-AZ $1.672 – – SQL Server Web · Multi-AZ $1.858 – – SQL Server Web Custom · Multi-AZ $1.926 – – SQL Server Enterprise · Single-AZ $2.577 $2.57 – SQL Server Enterprise Custom · Single-AZ $2.577 – – SQL Server Standard · Multi-AZ $3.175 $3.00 – SQL Server Standard Custom · Multi-AZ $3.175 – – SQL Server Enterprise · Multi-AZ $3.813 $3.804 – SQL Server Enterprise Custom · Multi-AZ $3.813 – –
Compute Value vCPUs 4 Physical cores 2 Threads per core 2 Architecture x86_64 Processor Intel Xeon Platinum 8000 series CPU maker Intel Clock speed Up to 3.1 GHz Sustained clock 3.1 GHz Burstable No
Memory Value Memory (GiB) 32
Networking Value Network Up to 10 Gbps Network baseline 1.25 Gbps Network peak 10 Gbps
Storage Value Storage EBS Only EBS throughput 312 Mbps EBS baseline bandwidth 2,500 Mbps EBS max bandwidth 10,000 Mbps EBS baseline throughput 312.5 MB/s EBS max throughput 1,250 MB/s EBS baseline IOPS 10,833 EBS max IOPS 43,333
Instance details Value Instance type db.r5b.xlarge Family r5b Category Memory optimized Current generation Yes
Other Value Hardware Basis r5b.xlarge
With or without local disk and networking
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS RDS sizes .