db.r8a.8xlarge

db.r8a.8xlarge is an AWS RDS size with 16 vCPUs, 256 GiB memory (5th Generation AMD EPYC). In US East (N. Virginia) it costs $4.83 per hour on demand ($3,526.19 per month) for PostgreSQL, Single-AZ; a 1-year Database Savings Plan costs $3.864 per hour, 20% less. It is sold in 9 regions.

Prices by region

USD per hour, PostgreSQL, Single-AZ. Reserved prices are no upfront, standard. Cheapest on-demand first.

Region	On-demand	1-yr savings plan
US East (N. Virginia) us-east-1	$4.83	$3.864
US East (Ohio) us-east-2	$4.83	$3.864
US West (Oregon) us-west-2	$4.83	$3.864
Asia Pacific (Taipei) ap-east-2	$5.216	$4.173
Canada (Central) ca-central-1	$5.216	$4.173
Europe (Spain) eu-south-2	$5.41	$4.328
EU (Ireland) eu-west-1	$5.41	$4.328
Asia Pacific (Tokyo) ap-northeast-1	$5.797	$4.637
EU (Frankfurt) eu-central-1	$5.893	$4.714

Reserved and Savings Plans

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	$4.83	–	–
PostgreSQL · Multi-AZ	$9.661	–	–
SQL Server Enterprise · Single-AZ	$4.604	–	–
SQL Server Enterprise BYOM · Single-AZ	$4.604	–	–
SQL Server Enterprise BYOM Unbundled · Single-AZ	$4.604	–	–
SQL Server Enterprise Developer BYOM · Single-AZ	$4.604	–	–
SQL Server Enterprise Developer BYOM Unbundled · Single-AZ	$4.604	–	–
SQL Server Enterprise Unbundled · Single-AZ	$4.604	–	–
SQL Server Standard · Single-AZ	$4.604	–	–
SQL Server Standard BYOM · Single-AZ	$4.604	–	–
SQL Server Standard BYOM Unbundled · Single-AZ	$4.604	–	–
SQL Server Standard Developer BYOM · Single-AZ	$4.604	–	–
SQL Server Standard Developer BYOM Unbundled · Single-AZ	$4.604	–	–
SQL Server Standard Unbundled · Single-AZ	$4.604	–	–
SQL Server Web · Single-AZ	$4.604	–	–
SQL Server Web Unbundled · Single-AZ	$4.604	–	–
MariaDB · Single-AZ	$4.83	–	–
MySQL · Single-AZ	$4.83	–	–
Aurora MySQL · Single-AZ	$5.603	–	–
Aurora PostgreSQL · Single-AZ	$5.603	–	–
Aurora MySQL I/O Optimized · Single-AZ	$7.285	–	–
Aurora PostgreSQL I/O Optimized · Single-AZ	$7.285	–	–
SQL Server Enterprise BYOM Unbundled · Multi-AZ	$9.207	–	–
SQL Server Enterprise Developer BYOM Unbundled · Multi-AZ	$9.207	–	–
SQL Server Enterprise Unbundled · Multi-AZ	$9.207	–	–
SQL Server Standard BYOM Unbundled · Multi-AZ	$9.207	–	–
SQL Server Standard Unbundled · Multi-AZ	$9.207	–	–
SQL Server Web Unbundled · Multi-AZ	$9.207	–	–
MariaDB · Multi-AZ	$9.661	–	–
MySQL · Multi-AZ	$9.661	–	–

Specs

Compute	Value
vCPUs	16
Physical cores	32
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)	256

Networking	Value
Network	15 Gbps
Network baseline	15 Gbps
Network peak	15 Gbps

Storage	Value
Storage	EBS Only
EBS baseline bandwidth	10,000 Mbps
EBS max bandwidth	10,000 Mbps
EBS baseline throughput	1,250 MB/s
EBS max throughput	1,250 MB/s
EBS baseline IOPS	40,000
EBS max IOPS	40,000

Instance details	Value
Instance type	db.r8a.8xlarge
Family	r8a
Category	Memory optimized
Current generation	Yes

Other	Value
Hardware Basis	r8a.8xlarge

Compare db.r8a.8xlarge

Other processors

vs db.r8i.8xlarge vs db.r8g.8xlarge

Compute and memory optimized

vs db.m8a.8xlarge

Other r8a sizes

Size	vCPUs	Memory (GiB)	On-demand /hr
db.r8a.large	2	16	$0.3019
db.r8a.xlarge	4	32	$0.6038
db.r8a.2xlarge	4	64	$1.208
db.r8a.4xlarge	8	128	$2.415
db.r8a.8xlarge	16	256	$4.83
db.r8a.12xlarge	48	384	$7.246
db.r8a.16xlarge	64	512	$9.661
db.r8a.24xlarge	96	768	$14.491
db.r8a.48xlarge	192	1536	$28.982

Prices updated 2026-11-12 from AWS public price lists. Compare all AWS RDS sizes.