db.m8g.2xlargevsdb.r8g.2xlarge

db.m8g.2xlarge is 30% cheaper than db.r8g.2xlarge on demand in US East (N. Virginia), saving $207.32 a month.

At a glancedb.m8g.2xlargedb.r8g.2xlarge
On-demand$0.672/hr30% less$0.956/hr
Lowest rate$0.3158/hr30% less3-yr reserved, no upfront$0.4493/hr3-yr reserved, no upfront
Size8 vCPUs, 32 GiB8 vCPUs, 64 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.2xlargedb.r8g.2xlargedb.r8g.2xlarge vs db.m8g.2xlarge
On-demandPay by the hour$0.672$0.956▲ 42%
1-yr reservedNo upfront33% off$0.4533% off$0.641▲ 42%
3-yr reservedNo upfront53% off$0.315853% off$0.4493▲ 42%
1-yr savings planHourly commitment20% off$0.537620% off$0.7648▲ 42%

Key differences

The biggest lead each one has.

Where db.m8g.2xlarge leads
On-demand price$0.672 vs $0.956 per hour
30% cheaper
Where db.r8g.2xlarge leads
Memory (GiB)64 vs 32
2× higher

Specs

8 of 24 specs differ. Those are in bold.

Compute1 of 8 differdb.m8g.2xlargedb.r8g.2xlarge
vCPUs88
Physical cores88
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton4–
CPU makerAWSAWS
Sustained clock2.8 GHz2.8 GHz
BurstableNoNo
Memory1 of 1 differdb.m8g.2xlargedb.r8g.2xlarge
Memory (GiB)3264
Networking1 of 3 differdb.m8g.2xlargedb.r8g.2xlarge
NetworkUp to 15 Gigabit–
Network baseline3.75 Gbps3.75 Gbps
Network peak15 Gbps15 Gbps
Storage1 of 7 differdb.m8g.2xlargedb.r8g.2xlarge
StorageEBS Only–
EBS baseline bandwidth2,500 Mbps2,500 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput312.5 MB/s312.5 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS12,00012,000
EBS max IOPS40,00040,000
Instance details3 of 4 differdb.m8g.2xlargedb.r8g.2xlarge
Familym8gr8g
CategoryGeneral purpose–
Current generationYes–
Normalization factor1616
Other1 of 1 differdb.m8g.2xlargedb.r8g.2xlarge
Hardware Basism8g.2xlarger8g.2xlarge

On-demand prices by region

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

Regiondb.m8g.2xlargedb.r8g.2xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.672$0.956▲ 42%
US East (Ohio)us-east-2$0.672$0.956▲ 42%
US West (Oregon)us-west-2$0.672$0.956▲ 42%
EU (Stockholm)eu-north-1$0.708$0.98▲ 38%
EU (Ireland)eu-west-1$0.744$1.072▲ 44%
Europe (Spain)eu-south-2$0.744$1.072▲ 44%
US West (N. California)us-west-1$0.768$1.072▲ 40%
EU (London)eu-west-2$0.78$1.122▲ 44%
EU (Paris)eu-west-3$0.78$1.122▲ 44%
Asia Pacific (Malaysia)ap-southeast-5$0.796$0.976▲ 23%
EU (Frankfurt)eu-central-1$0.8$1.164▲ 45%
Europe (Zurich)eu-central-2$0.884$1.28▲ 45%
Asia Pacific (Tokyo)ap-northeast-1$0.936$1.148▲ 23%
Asia Pacific (Singapore)ap-southeast-1$0.937$1.148▲ 23%
Asia Pacific (Sydney)ap-southeast-2$0.937$1.148▲ 23%
Asia Pacific (Seoul)ap-northeast-2$0.9376$1.148▲ 22%
Asia Pacific (Mumbai)ap-south-1$0.958$1.088▲ 14%
Asia Pacific (Hyderabad)ap-south-2$0.96$1.088▲ 13%
Asia Pacific (Hong Kong)ap-east-1$1.032$1.262▲ 22%
South America (Sao Paulo)sa-east-1$1.069$1.52▲ 42%

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.m8a.2xlargedb.m8gd.2xlargedb.m7g.2xlargedb.m9g.2xlarge
db.r8g.2xlarger8g family
db.r8g.2xlarge prices and specsEvery size in the r8g family

Compare db.r8g.2xlarge with

db.r8gd.2xlargedb.r8i.2xlargedb.r8a.2xlargedb.r7g.2xlarge

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.