db.m8g.largevsdb.m8i.large

db.m8g.large is 12% cheaper than db.m8i.large on demand in US East (N. Virginia), saving $16.06 a month. They use different processor architectures (arm64 and x86_64), so software built for one may need rebuilding to run on the other.

At a glancedb.m8g.largedb.m8i.large
On-demand$0.168/hr12% less$0.19/hr
Lowest rate$0.0789/hr12% less3-yr reserved, no upfront$0.0893/hr3-yr reserved, no upfront
Size2 vCPUs, 8 GiB2 vCPUs, 8 GiB
Architecturearm64x86_64

Prices in US East (N. Virginia)

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

Optiondb.m8g.largedb.m8i.largedb.m8i.large vs db.m8g.large
On-demandPay by the hour$0.168$0.19▲ 13%
1-yr reservedNo upfront33% off$0.11333% off$0.1273▲ 13%
3-yr reservedNo upfront53% off$0.078953% off$0.0893▲ 13%
1-yr savings planHourly commitment20% off$0.134420% off$0.152▲ 13%

Key differences

The biggest lead each one has.

Where db.m8g.large leads
On-demand price$0.168 vs $0.19 per hour
12% cheaper
Physical cores2 vs 1
2× higher
Where db.m8i.large leads
Sustained clock3.9 GHz vs 2.8 GHz
39% higher
EBS baseline bandwidth650 Mbps vs 630 Mbps
3% higher

Specs

15 of 24 specs differ. Those are in bold.

Compute6 of 8 differdb.m8g.largedb.m8i.large
vCPUs22
Physical cores21
Threads per core12
Architecturearm64x86_64
Processor–Intel Xeon Scalable (Granite Rapids)
CPU makerAWSIntel
Sustained clock2.8 GHz3.9 GHz
BurstableNoNo
MemoryAll 1 matchdb.m8g.largedb.m8i.large
Memory (GiB)88
Networking1 of 3 differdb.m8g.largedb.m8i.large
Network–Up to 12500 Megabit
Network baseline0.937 Gbps0.937 Gbps
Network peak12.5 Gbps12.5 Gbps
Storage3 of 7 differdb.m8g.largedb.m8i.large
Storage–EBS Only
EBS baseline bandwidth630 Mbps650 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput78.75 MB/s81.25 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS3,6003,600
EBS max IOPS40,00040,000
Instance details4 of 4 differdb.m8g.largedb.m8i.large
Familym8gm8i
Category–General purpose
Current generation–Yes
Normalization factor4–
Other1 of 1 differdb.m8g.largedb.m8i.large
Hardware Basism8g.largem8i.large

On-demand prices by region

Cheapest for db.m8g.large first. PostgreSQL, USD per hour.

Regiondb.m8g.largedb.m8i.largeDifference
US East (N. Virginia)Used in summaryus-east-1$0.168$0.19▲ 13%
US East (Ohio)us-east-2$0.168$0.19▲ 13%
US West (Oregon)us-west-2$0.168$0.19▲ 13%
Canada West (Calgary)ca-west-1$0.186$0.21▲ 13%
EU (Ireland)eu-west-1$0.186$0.207▲ 11%
Europe (Spain)eu-south-2$0.186$0.21▲ 13%
US West (N. California)us-west-1$0.192$0.21▲ 9%
EU (London)eu-west-2$0.195$0.216▲ 11%
EU (Paris)eu-west-3$0.195$0.22▲ 13%
Asia Pacific (Malaysia)ap-southeast-5$0.199$0.23▲ 16%
EU (Frankfurt)eu-central-1$0.2$0.22▲ 10%
Africa (Cape Town)af-south-1$0.222$0.25▲ 13%
Asia Pacific (Singapore)ap-southeast-1$0.234$0.26▲ 11%
Asia Pacific (Sydney)ap-southeast-2$0.234$0.26▲ 11%
Asia Pacific (Tokyo)ap-northeast-1$0.234$0.26▲ 11%
Asia Pacific (Seoul)ap-northeast-2$0.2344$0.26▲ 11%
Asia Pacific (Hyderabad)ap-south-2$0.24$0.27▲ 13%
Asia Pacific (Mumbai)ap-south-1$0.24$0.27▲ 13%
South America (Sao Paulo)sa-east-1$0.2671$0.24▼ 10%

Keep exploring

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

db.m8g.largem8g family
db.m8g.large prices and specsEvery size in the m8g family

Compare db.m8g.large with

db.t4g.largedb.r8g.largedb.m8a.largedb.m8gd.largedb.m7g.largedb.m9g.large
db.m8i.largeGeneral purpose, m8i family
db.m8i.large prices and specsEvery size in the m8i family

Compare db.m8i.large with

db.r8i.largedb.t3.largedb.m8a.largedb.t2.largedb.m7i.large

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.

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