db.m8g.2xlargevsdb.m9g.2xlarge

db.m8g.2xlarge is 8% cheaper than db.m9g.2xlarge on demand in US East (N. Virginia), saving $43.80 a month.

At a glancedb.m8g.2xlargedb.m9g.2xlarge
On-demand$0.672/hr8% less$0.732/hr
Lowest rate$0.5376/hr8% less1-yr savings plan, hourly commitment$0.5856/hr1-yr savings plan, hourly commitment
Size8 vCPUs, 32 GiB8 vCPUs, 32 GiB
ProcessorAWS Graviton4AWS Graviton5
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.2xlargedb.m9g.2xlargedb.m9g.2xlarge vs db.m8g.2xlarge
On-demandPay by the hour$0.672$0.732▲ 9%
1-yr reservedNo upfront33% off$0.45——
3-yr reservedNo upfront53% off$0.3158——
1-yr savings planHourly commitment20% off$0.537620% off$0.5856▲ 9%

Key differences

The biggest lead each one has.

Where db.m8g.2xlarge leads
On-demand price$0.672 vs $0.732 per hour
8% cheaper
Where db.m9g.2xlarge leads
EBS baseline bandwidth3,000 Mbps vs 2,500 Mbps
20% higher
Sustained clock3.3 GHz vs 2.8 GHz
18% higher
Network baseline4.25 Gbps vs 3.75 Gbps
13% higher

Specs

12 of 24 specs differ. Those are in bold.

Compute2 of 8 differdb.m8g.2xlargedb.m9g.2xlarge
vCPUs88
Physical cores88
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton4AWS Graviton5
CPU makerAWSAWS
Sustained clock2.8 GHz3.3 GHz
BurstableNoNo
MemoryAll 1 matchdb.m8g.2xlargedb.m9g.2xlarge
Memory (GiB)3232
Networking3 of 3 differdb.m8g.2xlargedb.m9g.2xlarge
NetworkUp to 15 GigabitUp to 17 Gigabit
Network baseline3.75 Gbps4.25 Gbps
Network peak15 Gbps17 Gbps
Storage5 of 7 differdb.m8g.2xlargedb.m9g.2xlarge
StorageEBS OnlyEBS Only
EBS baseline bandwidth2,500 Mbps3,000 Mbps
EBS max bandwidth10,000 Mbps12,000 Mbps
EBS baseline throughput312.5 MB/s375 MB/s
EBS max throughput1,250 MB/s1,500 MB/s
EBS baseline IOPS12,00012,000
EBS max IOPS40,00048,000
Instance details1 of 4 differdb.m8g.2xlargedb.m9g.2xlarge
Familym8gm9g
CategoryGeneral purposeGeneral purpose
Current generationYesYes
Normalization factor1616
Other1 of 1 differdb.m8g.2xlargedb.m9g.2xlarge
Hardware Basism8g.2xlargem9g.2xlarge

On-demand prices by region

Cheapest for db.m8g.2xlarge first. PostgreSQL, USD per hour.

Regiondb.m8g.2xlargedb.m9g.2xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.672$0.732▲ 9%
US East (Ohio)us-east-2$0.672$0.732▲ 9%
US West (Oregon)us-west-2$0.672$0.732▲ 9%
EU (Frankfurt)eu-central-1$0.8$0.872▲ 9%

Keep exploring

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

db.m8g.2xlargeGeneral purpose, m8g family
db.m8g.2xlarge prices and specsEvery size in the m8g family

Compare db.m8g.2xlarge with

db.m8i.2xlargedb.t4g.2xlargedb.r8g.2xlargedb.m8a.2xlargedb.m8gd.2xlargedb.m7g.2xlarge
db.m9g.2xlargeGeneral purpose, m9g family
db.m9g.2xlarge prices and specsEvery size in the m9g family

Compare db.m9g.2xlarge with

db.t4g.2xlarge

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.

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