db.r6gd.4xlargevsdb.r6id.4xlarge

db.r6gd.4xlarge is 14% cheaper than db.r6id.4xlarge on demand in US East (N. Virginia), saving $240.17 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.r6gd.4xlargedb.r6id.4xlarge
On-demand$2.057/hr14% less$2.386/hr
Lowest rate$1.584/hr14% less1-yr reserved, no upfront$1.837/hr1-yr reserved, no upfront
Size16 vCPUs, 128 GiB16 vCPUs, 128 GiB
ProcessorAWS Graviton2Intel Xeon 8375
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.r6gd.4xlargedb.r6id.4xlargedb.r6id.4xlarge vs db.r6gd.4xlarge
On-demandPay by the hour$2.057$2.386▲ 16%
1-yr reservedNo upfront23% off$1.58423% off$1.837▲ 16%

Key differences

The biggest lead each one has.

Where db.r6gd.4xlarge leads
On-demand price$2.057 vs $2.386 per hour
14% cheaper
Physical cores16 vs 8
2× higher
Where db.r6id.4xlarge leads
EBS max bandwidth10,000 Mbps vs 4,750 Mbps
2.1× higher
Sustained clock3.5 GHz vs 2.5 GHz
40% higher
Network baseline6.25 Gbps vs 5 Gbps
25% higher

Specs

17 of 25 specs differ. Those are in bold.

Compute6 of 8 differdb.r6gd.4xlargedb.r6id.4xlarge
vCPUs1616
Physical cores168
Threads per core12
Architecturearm64x86_64
ProcessorAWS Graviton2Intel Xeon 8375
CPU makerAWSIntel
Sustained clock2.5 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6gd.4xlargedb.r6id.4xlarge
Memory (GiB)128128
Networking3 of 3 differdb.r6gd.4xlargedb.r6id.4xlarge
NetworkUp to 10 GigabitUp to 12.5 Gbps
Network baseline5 Gbps6.25 Gbps
Network peak10 Gbps12.5 Gbps
Storage5 of 8 differdb.r6gd.4xlargedb.r6id.4xlarge
Storage1 x 950 NVMe SSD1 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 details2 of 4 differdb.r6gd.4xlargedb.r6id.4xlarge
Familyr6gdr6id
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor6432
Other1 of 1 differdb.r6gd.4xlargedb.r6id.4xlarge
Hardware Basisr6gd.4xlarger6id.4xlarge

On-demand prices by region

Cheapest for db.r6gd.4xlarge first. PostgreSQL, USD per hour.

Regiondb.r6gd.4xlargedb.r6id.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$2.057$2.386▲ 16%
US East (Ohio)us-east-2$2.057$2.386▲ 16%
US West (Oregon)us-west-2$2.057$2.386▲ 16%
Asia Pacific (Malaysia)ap-southeast-5$2.104$2.568▲ 22%
Asia Pacific (Thailand)ap-southeast-7$2.104$2.568▲ 22%
Mexico (Central)mx-central-1$2.16$2.504▲ 16%
Asia Pacific (Taipei)ap-east-2$2.224$2.576▲ 16%
EU (Ireland)eu-west-1$2.288$2.653▲ 16%
Israel (Tel Aviv)il-central-1$2.402$2.802▲ 17%
Asia Pacific (Tokyo)ap-northeast-1$2.469$2.861▲ 16%
Asia Pacific (Sydney)ap-southeast-2$2.485$2.886▲ 16%
EU (Frankfurt)eu-central-1$2.488$2.895▲ 16%
Asia Pacific (New Zealand)ap-southeast-6$4.101$3.032▼ 26%

Keep exploring

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

db.r6gd.4xlargeMemory optimized, r6gd family
db.r6gd.4xlarge prices and specsEvery size in the r6gd family

Compare db.r6gd.4xlarge with

db.r6g.4xlargedb.m6gd.4xlargedb.c6gd.4xlargedb.r8gd.4xlarge
db.r6id.4xlargeMemory optimized, r6id family
db.r6id.4xlarge prices and specsEvery size in the r6id family

Compare db.r6id.4xlarge with

db.r6i.4xlargedb.r6i.4xlarge.tpc2.mem2xdb.r6i.4xlarge.tpc2.mem3xdb.r6i.4xlarge.tpc2.mem4xdb.m6id.4xlargedb.r6i.4xlarge.tpc2.mem8xdb.r5d.4xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 23% 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.