db.m6gd.4xlargevsdb.m8gd.4xlarge

db.m6gd.4xlarge is 6% cheaper than db.m8gd.4xlarge on demand in US East (N. Virginia), saving $64.09 a month.

At a glancedb.m6gd.4xlargedb.m8gd.4xlarge
On-demand$1.493/hr6% less$1.581/hr
Size16 vCPUs, 64 GiB16 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.m6gd.4xlargedb.m8gd.4xlargedb.m8gd.4xlarge vs db.m6gd.4xlarge
On-demandPay by the hour$1.493$1.581▲ 6%
1-yr reservedNo upfront23% off$1.15——
1-yr savings planHourly commitment—20% off$1.265—

Key differences

The biggest lead each one has.

Where db.m6gd.4xlarge leads
On-demand price$1.493 vs $1.581 per hour
6% cheaper
Where db.m8gd.4xlarge leads
EBS max bandwidth10,000 Mbps vs 4,750 Mbps
2.1× higher
Network baseline7.5 Gbps vs 5 Gbps
50% higher
Sustained clock2.8 GHz vs 2.5 GHz
12% higher

Specs

14 of 24 specs differ. Those are in bold.

Compute1 of 7 differdb.m6gd.4xlargedb.m8gd.4xlarge
vCPUs1616
Physical cores1616
Threads per core11
Architecturearm64arm64
CPU makerAWSAWS
Sustained clock2.5 GHz2.8 GHz
BurstableNoNo
MemoryAll 1 matchdb.m6gd.4xlargedb.m8gd.4xlarge
Memory (GiB)6464
Networking3 of 3 differdb.m6gd.4xlargedb.m8gd.4xlarge
Network–Up to 15 Gigabit
Network baseline5 Gbps7.5 Gbps
Network peak10 Gbps15 Gbps
Storage6 of 8 differdb.m6gd.4xlargedb.m8gd.4xlarge
Storage–1 x 950 NVMe SSD
Local disks1 × 950 GB SSD1 × 950 GB SSD
EBS baseline bandwidth4,750 Mbps5,000 Mbps
EBS max bandwidth4,750 Mbps10,000 Mbps
EBS baseline throughput593.75 MB/s625 MB/s
EBS max throughput593.75 MB/s1,250 MB/s
EBS baseline IOPS20,00020,000
EBS max IOPS20,00040,000
Instance details3 of 4 differdb.m6gd.4xlargedb.m8gd.4xlarge
Familym6gdm8gd
Category–Memory optimized
Current generation–Yes
Normalization factor3232
Other1 of 1 differdb.m6gd.4xlargedb.m8gd.4xlarge
Hardware Basism6gd.4xlargem8gd.4xlarge

On-demand prices by region

Cheapest for db.m6gd.4xlarge first. PostgreSQL, USD per hour.

Regiondb.m6gd.4xlargedb.m8gd.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.493$1.581▲ 6%
US East (Ohio)us-east-2$1.493$1.581▲ 6%
US West (Oregon)us-west-2$1.493$1.581▲ 6%
Canada (Central)ca-central-1$1.648$1.821▲ 10%
Europe (Spain)eu-south-2$1.648$1.742▲ 6%
EU (Ireland)eu-west-1$1.65$1.825▲ 11%
EU (London)eu-west-2$1.737$1.923▲ 11%
Asia Pacific (Malaysia)ap-southeast-5$1.768$1.871▲ 6%
EU (Frankfurt)eu-central-1$1.791$1.896▲ 6%
Asia Pacific (Tokyo)ap-northeast-1$2.089$2.211▲ 6%
Asia Pacific (Sydney)ap-southeast-2$2.10$2.349▲ 12%

Keep exploring

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

db.m6gd.4xlargem6gd family
db.m6gd.4xlarge prices and specsEvery size in the m6gd family

Compare db.m6gd.4xlarge with

db.m6g.4xlargedb.m6id.4xlargedb.r6gd.4xlargedb.c6gd.4xlarge
db.m8gd.4xlargeMemory optimized, m8gd family
db.m8gd.4xlarge prices and specsEvery size in the m8gd family

Compare db.m8gd.4xlarge with

db.m8g.4xlargedb.r8gd.4xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 20–23% 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.