db.c6gd.8xlargevsdb.r6gd.8xlarge

At a glancedb.c6gd.8xlargedb.r6gd.8xlarge
Size32 vCPUs, 64 GiB32 vCPUs, 256 GiB
ProcessorAWS Graviton2AWS Graviton2
Architecturearm64arm64

Key differences

The biggest lead each one has.

Where db.c6gd.8xlarge leads

No clear lead on the measures we compare.

Where db.r6gd.8xlarge leads
Memory (GiB)256 vs 64
4× higher

Specs

6 of 25 specs differ. Those are in bold.

ComputeAll 8 matchdb.c6gd.8xlargedb.r6gd.8xlarge
vCPUs3232
Physical cores3232
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton2AWS Graviton2
CPU makerAWSAWS
Sustained clock2.5 GHz2.5 GHz
BurstableNoNo
Memory1 of 1 differdb.c6gd.8xlargedb.r6gd.8xlarge
Memory (GiB)64256
Networking1 of 3 differdb.c6gd.8xlargedb.r6gd.8xlarge
Network12 Gbps10 Gigabit
Network baseline12 Gbps12 Gbps
Network peak12 Gbps12 Gbps
StorageAll 8 matchdb.c6gd.8xlargedb.r6gd.8xlarge
Storage1 x 1900 NVMe SSD1 x 1900 NVMe SSD
Local disks1 × 1,900 GB SSD1 × 1,900 GB SSD
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 details3 of 4 differdb.c6gd.8xlargedb.r6gd.8xlarge
Familyc6gdr6gd
CategoryCompute optimizedMemory optimized
Current generationYesYes
Normalization factor192128
Other1 of 1 differdb.c6gd.8xlargedb.r6gd.8xlarge
Hardware Basisc6gd.8xlarger6gd.8xlarge

Keep exploring

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

db.c6gd.8xlargeCompute optimized, c6gd family
db.c6gd.8xlarge prices and specsEvery size in the c6gd family

Compare db.c6gd.8xlarge with

db.m6gd.8xlarge
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.r6id.8xlargedb.r8gd.8xlarge

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AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.