db.r6g.4xlargevsdb.r7g.4xlarge

db.r6g.4xlarge is 6% cheaper than db.r7g.4xlarge on demand in US East (N. Virginia), saving $83.95 a month.

At a glancedb.r6g.4xlargedb.r7g.4xlarge
On-demand$1.798/hr6% less$1.913/hr
Lowest rate$1.039/hr29% less1-yr reserved, no upfront$1.473/hr1-yr reserved, no upfront
Size16 vCPUs, 128 GiB16 vCPUs, 128 GiB
ProcessorAWS Graviton2AWS Graviton3
Architecturearm64arm64

Prices in US East (N. Virginia)

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

Optiondb.r6g.4xlargedb.r7g.4xlargedb.r7g.4xlarge vs db.r6g.4xlarge
On-demandPay by the hour$1.798$1.913▲ 6%
1-yr reservedNo upfront42% off$1.03923% off$1.473▲ 42%
1-yr savings planHourly commitment—20% off$1.53—

Key differences

The biggest lead each one has.

Where db.r6g.4xlarge leads
On-demand price$1.798 vs $1.913 per hour
6% cheaper
Where db.r7g.4xlarge leads
EBS max bandwidth10,000 Mbps vs 4,750 Mbps
2.1× higher
Network baseline7.5 Gbps vs 5 Gbps
50% higher
Sustained clock2.6 GHz vs 2.5 GHz
4% higher

Specs

13 of 24 specs differ. Those are in bold.

Compute2 of 8 differdb.r6g.4xlargedb.r7g.4xlarge
vCPUs1616
Physical cores1616
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton2AWS Graviton3
CPU makerAWSAWS
Sustained clock2.5 GHz2.6 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6g.4xlargedb.r7g.4xlarge
Memory (GiB)128128
Networking3 of 3 differdb.r6g.4xlargedb.r7g.4xlarge
NetworkUp to 10 GigabitUp to 15 Gigabit
Network baseline5 Gbps7.5 Gbps
Network peak10 Gbps15 Gbps
Storage5 of 7 differdb.r6g.4xlargedb.r7g.4xlarge
StorageEBS OnlyEBS Only
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 details2 of 4 differdb.r6g.4xlargedb.r7g.4xlarge
Familyr6gr7g
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor6432
Other1 of 1 differdb.r6g.4xlargedb.r7g.4xlarge
Hardware Basisr6g.4xlarger7g.4xlarge

On-demand prices by region

Cheapest for db.r6g.4xlarge first. PostgreSQL, USD per hour.

Regiondb.r6g.4xlargedb.r7g.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.798$1.913▲ 6%
US East (Ohio)us-east-2$1.798$1.913▲ 6%
US West (Oregon)us-west-2$1.798$1.913▲ 6%
Asia Pacific (Malaysia)ap-southeast-5$1.84$1.952▲ 6%
Asia Pacific (Thailand)ap-southeast-7$1.84$1.952▲ 6%
EU (Stockholm)eu-north-1$1.849$1.963▲ 6%
Mexico (Central)mx-central-1$1.888$2.008▲ 6%
Asia Pacific (Taipei)ap-east-2$1.944$2.064▲ 6%
Canada (Central)ca-central-1$1.944$2.066▲ 6%
Canada West (Calgary)ca-west-1$1.944$2.064▲ 6%
EU (Ireland)eu-west-1$2.014$2.143▲ 6%
US West (N. California)us-west-1$2.014$2.142▲ 6%
Europe (Spain)eu-south-2$2.016$2.142▲ 6%
Asia Pacific (Hyderabad)ap-south-2$2.048$2.176▲ 6%
Asia Pacific (Mumbai)ap-south-1$2.05$2.176▲ 6%
EU (Milan)eu-south-1$2.112$2.244▲ 6%
EU (Paris)eu-west-3$2.112$2.544▲ 20%
EU (London)eu-west-2$2.115$2.244▲ 6%
Israel (Tel Aviv)il-central-1$2.117$2.256▲ 7%
Asia Pacific (Osaka)ap-northeast-3$2.157$2.296▲ 6%
Asia Pacific (Jakarta)ap-southeast-3$2.158$2.296▲ 6%
Asia Pacific (Seoul)ap-northeast-2$2.158$2.295▲ 6%
Asia Pacific (Singapore)ap-southeast-1$2.158$2.295▲ 6%
Asia Pacific (Sydney)ap-southeast-2$2.158$2.295▲ 6%
Asia Pacific (Tokyo)ap-northeast-1$2.158$2.295▲ 6%
AWS GovCloud (US-East)us-gov-east-1$2.158$2.296▲ 6%
AWS GovCloud (US-West)us-gov-west-1$2.158$2.296▲ 6%
EU (Frankfurt)eu-central-1$2.194$2.329▲ 6%
Middle East (Bahrain)me-south-1$2.216$2.352▲ 6%
Middle East (UAE)me-central-1$2.216$2.664▲ 20%
Asia Pacific (New Zealand)ap-southeast-6$2.268$2.411▲ 6%
Asia Pacific (Hong Kong)ap-east-1$2.374$2.525▲ 6%
Africa (Cape Town)af-south-1$2.395$2.928▲ 22%
Europe (Zurich)eu-central-2$2.411$2.56▲ 6%
South America (Sao Paulo)sa-east-1$3.742$3.042▼ 19%

Keep exploring

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

db.r6g.4xlargeMemory optimized, r6g family
db.r6g.4xlarge prices and specsEvery size in the r6g family

Compare db.r6g.4xlarge with

db.m6g.4xlargedb.r6i.4xlargedb.r6i.4xlarge.tpc2.mem2xdb.r6i.4xlarge.tpc2.mem3xdb.r6i.4xlarge.tpc2.mem4xdb.r6gd.4xlargedb.r6i.4xlarge.tpc2.mem8x
db.r7g.4xlargeMemory optimized, r7g family
db.r7g.4xlarge prices and specsEvery size in the r7g family

Compare db.r7g.4xlarge with

db.m7g.4xlargedb.r7i.4xlargedb.r7i.4xlarge.tpc2.mem2xdb.r7i.4xlarge.tpc2.mem3xdb.r7i.4xlarge.tpc2.mem4xdb.r8g.4xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 23–42% 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.