db.m8g.24xlargevsdb.m9g.24xlarge

db.m8g.24xlarge is 8% cheaper than db.m9g.24xlarge on demand in US East (N. Virginia), saving $529.98 a month.

At a glancedb.m8g.24xlargedb.m9g.24xlarge
On-demand$8.064/hr8% less$8.79/hr
Lowest rate$6.451/hr8% less1-yr savings plan, hourly commitment$7.032/hr1-yr savings plan, hourly commitment
Size96 vCPUs, 512 GiB96 vCPUs, 384 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.m9g.24xlargedb.m9g.24xlarge vs db.m8g.24xlarge
On-demandPay by the hour$8.064$8.79▲ 9%
1-yr reservedNo upfront33% off$5.403——
3-yr reservedNo upfront53% off$3.79——
1-yr savings planHourly commitment20% off$6.45120% off$7.032▲ 9%

Key differences

The biggest lead each one has.

Where db.m8g.24xlarge leads
On-demand price$8.064 vs $8.79 per hour
8% cheaper
Memory (GiB)512 vs 384
33% higher
Where db.m9g.24xlarge leads
Network baseline50 Gbps vs 40 Gbps
25% higher
EBS baseline bandwidth36,000 Mbps vs 30,000 Mbps
20% higher
Sustained clock3.3 GHz vs 2.8 GHz
18% higher

Specs

17 of 24 specs differ. Those are in bold.

Compute2 of 8 differdb.m8g.24xlargedb.m9g.24xlarge
vCPUs9696
Physical cores9696
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton4–
CPU makerAWSAWS
Sustained clock2.8 GHz3.3 GHz
BurstableNoNo
Memory1 of 1 differdb.m8g.24xlargedb.m9g.24xlarge
Memory (GiB)512384
Networking3 of 3 differdb.m8g.24xlargedb.m9g.24xlarge
Network40 Gigabit–
Network baseline40 Gbps50 Gbps
Network peak40 Gbps50 Gbps
Storage7 of 7 differdb.m8g.24xlargedb.m9g.24xlarge
StorageEBS Only–
EBS baseline bandwidth30,000 Mbps36,000 Mbps
EBS max bandwidth30,000 Mbps36,000 Mbps
EBS baseline throughput3,750 MB/s4,500 MB/s
EBS max throughput3,750 MB/s4,500 MB/s
EBS baseline IOPS120,000144,000
EBS max IOPS120,000144,000
Instance details3 of 4 differdb.m8g.24xlargedb.m9g.24xlarge
Familym8gm9g
CategoryGeneral purpose–
Current generationYes–
Normalization factor192192
Other1 of 1 differdb.m8g.24xlargedb.m9g.24xlarge
Hardware Basism8g.24xlargem9g.24xlarge

On-demand prices by region

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

Regiondb.m8g.24xlargedb.m9g.24xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$8.064$8.79▲ 9%
US East (Ohio)us-east-2$8.064$8.79▲ 9%
US West (Oregon)us-west-2$8.064$8.79▲ 9%
EU (Frankfurt)eu-central-1$9.60$10.464▲ 9%

Keep exploring

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

db.m8g.24xlargeGeneral purpose, m8g family
db.m8g.24xlarge prices and specsEvery size in the m8g family

Compare db.m8g.24xlarge with

db.m8i.24xlargedb.r8g.24xlargedb.m8a.24xlargedb.m8gd.24xlarge
db.m9g.24xlargem9g family
db.m9g.24xlarge prices and specsEvery size in the m9g family

Pay the committed rate, with commitment protection

The best committed rate on these two is 20–53% 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.