db.r6gd.8xlargevsdb.r6id.8xlarge

db.r6gd.8xlarge is 14% cheaper than db.r6id.8xlarge on demand in US East (N. Virginia), saving $479.61 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.8xlargedb.r6id.8xlarge
On-demand$4.114/hr14% less$4.771/hr
Lowest rate$3.168/hr14% less1-yr reserved, no upfront$3.674/hr1-yr reserved, no upfront
Size32 vCPUs, 256 GiB32 vCPUs, 256 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.8xlargedb.r6id.8xlargedb.r6id.8xlarge vs db.r6gd.8xlarge
On-demandPay by the hour$4.114$4.771▲ 16%
1-yr reservedNo upfront23% off$3.16823% off$3.674▲ 16%

Key differences

The biggest lead each one has.

Where db.r6gd.8xlarge leads
On-demand price$4.114 vs $4.771 per hour
14% cheaper
Physical cores32 vs 16
2× higher
Where db.r6id.8xlarge leads
Sustained clock3.5 GHz vs 2.5 GHz
40% higher
EBS baseline bandwidth10,000 Mbps vs 9,500 Mbps
5% higher
Network baseline12.5 Gbps vs 12 Gbps
4% higher

Specs

15 of 25 specs differ. Those are in bold.

Compute6 of 8 differdb.r6gd.8xlargedb.r6id.8xlarge
vCPUs3232
Physical cores3216
Threads per core12
Architecturearm64x86_64
ProcessorAWS Graviton2Intel Xeon 8375
CPU makerAWSIntel
Sustained clock2.5 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6gd.8xlargedb.r6id.8xlarge
Memory (GiB)256256
Networking3 of 3 differdb.r6gd.8xlargedb.r6id.8xlarge
Network10 Gigabit12.5 Gbps
Network baseline12 Gbps12.5 Gbps
Network peak12 Gbps12.5 Gbps
Storage4 of 8 differdb.r6gd.8xlargedb.r6id.8xlarge
Storage1 x 1900 NVMe SSD1 x 1900 NVMe SSD
Local disks1 × 1,900 GB SSD1 × 1,900 GB SSD
EBS baseline bandwidth9,500 Mbps10,000 Mbps
EBS max bandwidth9,500 Mbps10,000 Mbps
EBS baseline throughput1,187.5 MB/s1,250 MB/s
EBS max throughput1,187.5 MB/s1,250 MB/s
EBS baseline IOPS40,00040,000
EBS max IOPS40,00040,000
Instance details1 of 4 differdb.r6gd.8xlargedb.r6id.8xlarge
Familyr6gdr6id
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor128128
Other1 of 1 differdb.r6gd.8xlargedb.r6id.8xlarge
Hardware Basisr6gd.8xlarger6id.8xlarge

On-demand prices by region

Cheapest for db.r6gd.8xlarge first. PostgreSQL, USD per hour.

Regiondb.r6gd.8xlargedb.r6id.8xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$4.114$4.771▲ 16%
US East (Ohio)us-east-2$4.114$4.771▲ 16%
US West (Oregon)us-west-2$4.114$4.771▲ 16%
Asia Pacific (Malaysia)ap-southeast-5$4.208$5.136▲ 22%
Asia Pacific (Thailand)ap-southeast-7$4.208$5.136▲ 22%
Mexico (Central)mx-central-1$4.32$5.008▲ 16%
Asia Pacific (Taipei)ap-east-2$4.448$5.152▲ 16%
EU (Ireland)eu-west-1$4.575$5.305▲ 16%
Israel (Tel Aviv)il-central-1$4.805$5.605▲ 17%
Asia Pacific (Tokyo)ap-northeast-1$4.938$5.722▲ 16%
Asia Pacific (Sydney)ap-southeast-2$4.971$5.772▲ 16%
EU (Frankfurt)eu-central-1$4.975$5.789▲ 16%
Asia Pacific (New Zealand)ap-southeast-6$8.202$6.064▼ 26%

Keep exploring

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

db.r6gd.8xlargeMemory optimized, r6gd family
db.r6gd.8xlarge prices and specsEvery size in the r6gd family

Compare db.r6gd.8xlarge with

db.r6g.8xlargedb.m6gd.8xlargedb.c6gd.8xlargedb.r8gd.8xlarge
db.r6id.8xlargeMemory optimized, r6id family
db.r6id.8xlarge prices and specsEvery size in the r6id family

Compare db.r6id.8xlarge with

db.r6i.8xlargedb.r6i.8xlarge.tpc2.mem3xdb.r6i.8xlarge.tpc2.mem4xdb.m6id.8xlargedb.r5d.8xlarge

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.