db.m6g.8xlargevsdb.r6g.8xlarge

db.m6g.8xlarge is 29% cheaper than db.r6g.8xlarge on demand in US East (N. Virginia), saving $768.69 a month.

At a glancedb.m6g.8xlargedb.r6g.8xlarge
On-demand$2.544/hr29% less$3.597/hr
Lowest rate$1.629/hr22% less1-yr reserved, no upfront$2.078/hr1-yr reserved, no upfront
Size32 vCPUs, 128 GiB32 vCPUs, 256 GiB
ProcessorAWS Graviton2AWS Graviton2
Architecturearm64arm64

Prices in US East (N. Virginia)

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

Optiondb.m6g.8xlargedb.r6g.8xlargedb.r6g.8xlarge vs db.m6g.8xlarge
On-demandPay by the hour$2.544$3.597▲ 41%
1-yr reservedNo upfront36% off$1.62942% off$2.078▲ 28%

Key differences

The biggest lead each one has.

Where db.m6g.8xlarge leads
On-demand price$2.544 vs $3.597 per hour
29% cheaper
Where db.r6g.8xlarge leads
Memory (GiB)256 vs 128
2× higher

Specs

4 of 24 specs differ. Those are in bold.

ComputeAll 8 matchdb.m6g.8xlargedb.r6g.8xlarge
vCPUs3232
Physical cores3232
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton2AWS Graviton2
CPU makerAWSAWS
Sustained clock2.5 GHz2.5 GHz
BurstableNoNo
Memory1 of 1 differdb.m6g.8xlargedb.r6g.8xlarge
Memory (GiB)128256
NetworkingAll 3 matchdb.m6g.8xlargedb.r6g.8xlarge
Network10 Gigabit10 Gigabit
Network baseline12 Gbps12 Gbps
Network peak12 Gbps12 Gbps
StorageAll 7 matchdb.m6g.8xlargedb.r6g.8xlarge
StorageEBS OnlyEBS Only
EBS baseline bandwidth9,500 Mbps9,500 Mbps
EBS max bandwidth9,500 Mbps9,500 Mbps
EBS baseline throughput1,187.5 MB/s1,187.5 MB/s
EBS max throughput1,187.5 MB/s1,187.5 MB/s
EBS baseline IOPS40,00040,000
EBS max IOPS40,00040,000
Instance details2 of 4 differdb.m6g.8xlargedb.r6g.8xlarge
Familym6gr6g
CategoryGeneral purposeMemory optimized
Current generationYesYes
Normalization factor128128
Other1 of 1 differdb.m6g.8xlargedb.r6g.8xlarge
Hardware Basism6g.8xlarger6g.8xlarge

On-demand prices by region

Cheapest for db.m6g.8xlarge first. PostgreSQL, USD per hour.

Regiondb.m6g.8xlargedb.r6g.8xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$2.544$3.597▲ 41%
US East (Ohio)us-east-2$2.544$3.597▲ 41%
US West (Oregon)us-west-2$2.544$3.597▲ 41%
Mexico (Central)mx-central-1$2.672$3.776▲ 41%
EU (Stockholm)eu-north-1$2.673$3.698▲ 38%
Canada (Central)ca-central-1$2.801$3.889▲ 39%
Canada West (Calgary)ca-west-1$2.801$3.889▲ 39%
EU (Ireland)eu-west-1$2.816$4.028▲ 43%
Europe (Spain)eu-south-2$2.816$4.032▲ 43%
US West (N. California)us-west-1$2.901$4.028▲ 39%
EU (London)eu-west-2$2.944$4.23▲ 44%
EU (Paris)eu-west-3$2.944$4.224▲ 43%
Israel (Tel Aviv)il-central-1$2.957$4.234▲ 43%
EU (Milan)eu-south-1$2.96$4.224▲ 43%
AWS GovCloud (US-East)us-gov-east-1$2.973$4.317▲ 45%
AWS GovCloud (US-West)us-gov-west-1$2.973$4.317▲ 45%
Asia Pacific (Malaysia)ap-southeast-5$3.008$3.68▲ 22%
Asia Pacific (Thailand)ap-southeast-7$3.008$3.68▲ 22%
EU (Frankfurt)eu-central-1$3.03$4.388▲ 45%
Middle East (Bahrain)me-south-1$3.088$4.431▲ 43%
Middle East (UAE)me-central-1$3.088$4.432▲ 44%
Asia Pacific (Taipei)ap-east-2$3.184$3.888▲ 22%
Europe (Zurich)eu-central-2$3.328$4.822▲ 45%
South America (Sao Paulo)sa-east-1$3.33$7.483▲ 125%
Africa (Cape Town)af-south-1$3.338$4.79▲ 43%
Asia Pacific (Jakarta)ap-southeast-3$3.53$4.316▲ 22%
Asia Pacific (Melbourne)ap-southeast-4$3.53$4.316▲ 22%
Asia Pacific (Seoul)ap-northeast-2$3.53$4.316▲ 22%
Asia Pacific (Singapore)ap-southeast-1$3.53$4.316▲ 22%
Asia Pacific (Sydney)ap-southeast-2$3.53$4.316▲ 22%
Asia Pacific (Tokyo)ap-northeast-1$3.53$4.316▲ 22%
Asia Pacific (Hyderabad)ap-south-2$3.616$4.096▲ 13%
Asia Pacific (Mumbai)ap-south-1$3.616$4.10▲ 13%
Asia Pacific (New Zealand)ap-southeast-6$3.714$4.536▲ 22%
Asia Pacific (Osaka)ap-northeast-3$3.747$4.314▲ 15%
Asia Pacific (Hong Kong)ap-east-1$3.883$4.748▲ 22%

Keep exploring

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

db.m6g.8xlargeGeneral purpose, m6g family
db.m6g.8xlarge prices and specsEvery size in the m6g family

Compare db.m6g.8xlarge with

db.m6i.8xlargedb.m6gd.8xlargedb.m7g.8xlarge
db.r6g.8xlargeMemory optimized, r6g family
db.r6g.8xlarge prices and specsEvery size in the r6g family

Compare db.r6g.8xlarge with

db.r6i.8xlargedb.r6i.8xlarge.tpc2.mem3xdb.r6i.8xlarge.tpc2.mem4xdb.r6gd.8xlargedb.r7g.8xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 36–42% 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.