db.m8g.24xlargevsdb.r8g.24xlarge

db.m8g.24xlarge is 30% cheaper than db.r8g.24xlarge on demand in US East (N. Virginia), saving $2,487.84 a month.

At a glancedb.m8g.24xlargedb.r8g.24xlarge
On-demand$8.064/hr30% less$11.472/hr
Lowest rate$3.79/hr30% less3-yr reserved, no upfront$5.392/hr3-yr reserved, no upfront
Size96 vCPUs, 512 GiB96 vCPUs, 768 GiB
Architecturearm64arm64

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.

Optiondb.m8g.24xlargedb.r8g.24xlargedb.r8g.24xlarge vs db.m8g.24xlarge
On-demandPay by the hour$8.064$11.472▲ 42%
1-yr reservedNo upfront33% off$5.40333% off$7.686▲ 42%
3-yr reservedNo upfront53% off$3.7953% off$5.392▲ 42%
1-yr savings planHourly commitment20% off$6.45120% off$9.178▲ 42%

Key differences

The biggest lead each one has.

Where db.m8g.24xlarge leads
On-demand price$8.064 vs $11.472 per hour
30% cheaper
Where db.r8g.24xlarge leads
Memory (GiB)768 vs 512
50% higher

Specs

8 of 24 specs differ. Those are in bold.

Compute1 of 8 differdb.m8g.24xlargedb.r8g.24xlarge
vCPUs9696
Physical cores9696
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton4–
CPU makerAWSAWS
Sustained clock2.8 GHz2.8 GHz
BurstableNoNo
Memory1 of 1 differdb.m8g.24xlargedb.r8g.24xlarge
Memory (GiB)512768
Networking1 of 3 differdb.m8g.24xlargedb.r8g.24xlarge
Network40 Gigabit–
Network baseline40 Gbps40 Gbps
Network peak40 Gbps40 Gbps
Storage1 of 7 differdb.m8g.24xlargedb.r8g.24xlarge
StorageEBS Only–
EBS baseline bandwidth30,000 Mbps30,000 Mbps
EBS max bandwidth30,000 Mbps30,000 Mbps
EBS baseline throughput3,750 MB/s3,750 MB/s
EBS max throughput3,750 MB/s3,750 MB/s
EBS baseline IOPS120,000120,000
EBS max IOPS120,000120,000
Instance details3 of 4 differdb.m8g.24xlargedb.r8g.24xlarge
Familym8gr8g
CategoryGeneral purpose–
Current generationYes–
Normalization factor192192
Other1 of 1 differdb.m8g.24xlargedb.r8g.24xlarge
Hardware Basism8g.24xlarger8g.24xlarge

On-demand prices by region

Cheapest for db.m8g.24xlarge first. PostgreSQL, USD per hour.

Regiondb.m8g.24xlargedb.r8g.24xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$8.064$11.472▲ 42%
US East (Ohio)us-east-2$8.064$11.472▲ 42%
US West (Oregon)us-west-2$8.064$11.472▲ 42%
EU (Stockholm)eu-north-1$8.496$11.76▲ 38%
EU (Ireland)eu-west-1$8.928$12.864▲ 44%
Europe (Spain)eu-south-2$8.928$12.864▲ 44%
US West (N. California)us-west-1$9.216$12.864▲ 40%
EU (London)eu-west-2$9.36$13.464▲ 44%
EU (Paris)eu-west-3$9.36$13.46▲ 44%
Asia Pacific (Malaysia)ap-southeast-5$9.552$11.712▲ 23%
EU (Frankfurt)eu-central-1$9.60$13.968▲ 46%
Europe (Zurich)eu-central-2$10.608$15.36▲ 45%
Asia Pacific (Tokyo)ap-northeast-1$11.232$13.776▲ 23%
Asia Pacific (Singapore)ap-southeast-1$11.242$13.776▲ 23%
Asia Pacific (Sydney)ap-southeast-2$11.242$13.776▲ 23%
Asia Pacific (Seoul)ap-northeast-2$11.251$13.771▲ 22%
Asia Pacific (Mumbai)ap-south-1$11.496$13.056▲ 14%
Asia Pacific (Hyderabad)ap-south-2$11.52$13.056▲ 13%
Asia Pacific (Hong Kong)ap-east-1$12.384$15.148▲ 22%
South America (Sao Paulo)sa-east-1$12.822$18.241▲ 42%

Keep exploring

Each type’s own page, and how it compares with others.

Pay the committed rate, with commitment protection

The best committed rate on these two is 53% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

Connect AWS account

AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.