db.m9g.4xlarge

db.m9g.4xlarge is an AWS RDS size with 16 vCPUs, 64 GiB memory. In US East (N. Virginia) it costs $1.465 per hour on demand ($1,069.45 per month) for PostgreSQL, Single-AZ; a 1-year Database Savings Plan costs $1.172 per hour, 20% less. It is sold in 4 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	$1.465	$1.172
US East (Ohio) us-east-2	$1.465	$1.172
US West (Oregon) us-west-2	$1.465	$1.172
EU (Frankfurt) eu-central-1	$1.744	$1.395

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	$1.465	–	–
PostgreSQL · Multi-AZ	$2.93	–	–
MariaDB · Single-AZ	$1.465	–	–
MySQL · Single-AZ	$1.465	–	–
MariaDB · Multi-AZ	$2.93	–	–
MySQL · Multi-AZ	$2.93	–	–

Specs

Compute	Value
vCPUs	16
Physical cores	16
Threads per core	1
Architecture	arm64
CPU maker	AWS
Sustained clock	3.3 GHz
Burstable	No

Memory	Value
Memory (GiB)	64

Networking	Value
Network baseline	8.5 Gbps
Network peak	17 Gbps

Storage	Value
EBS baseline bandwidth	6,000 Mbps
EBS max bandwidth	12,000 Mbps
EBS baseline throughput	750 MB/s
EBS max throughput	1,500 MB/s
EBS baseline IOPS	24,000
EBS max IOPS	48,000

Instance details	Value
Instance type	db.m9g.4xlarge
Family	m9g
Normalization factor	32

Other	Value
Hardware Basis	m9g.4xlarge

Compare db.m9g.4xlarge

Other generations

vs db.m8g.4xlarge

Other m9g sizes

Size	vCPUs	Memory (GiB)	On-demand /hr
db.m9g.large	2	8	$0.183
db.m9g.xlarge	4	16	$0.366
db.m9g.2xlarge	8	32	$0.732
db.m9g.4xlarge	16	64	$1.465
db.m9g.8xlarge	32	128	$2.93
db.m9g.12xlarge	48	192	$4.395
db.m9g.16xlarge	64	256	$5.86
db.m9g.24xlarge	96	384	$8.79
db.m9g.48xlarge	192	768	$17.58

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