c9gd.4xlarge

Analysis

The c9gd.4xlarge is a compute optimized instance in the c9gd series with 16 vCPUs and 32 GiB of memory on AWS Graviton5 (up to 3.3 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.

Within the same generation and size, the c9g.4xlarge on AWS Graviton5 costs $0.6955/hour, 19% less ($116 a month).

Running it in N. Virginia instead of Tokyo saves $169 a month per instance: $0.8544/hour against $1.09/hour, a 27% spread. It is not offered in Canada Central, São Paulo, Ireland, London, Mumbai and Sydney, so plan around that if you need a presence there.

Compared with the previous generation, it costs 9.0% more than the c8gd.4xlarge on AWS Graviton4 ($51.51 more a month per instance), in exchange for the newer processor.

On demand it costs $0.8544/hour in US East (N. Virginia), $624 a month if left running, which puts it mid-table for compute optimized types at the 65th percentile per vCPU ($0.0534 per vCPU-hour) and the 69th percentile per GiB ($0.0267 per GiB-hour).

Looking beyond its own line, 21 of 31 current types with 16 vCPUs and similar memory are cheaper. The cheapest of those is the c6g.4xlarge on AWS Graviton2 at $0.5440/hour.

It has local instance storage (1 x 950 GB NVMe SSD), which is fast but lost when the instance stops. Network: Up to 17 Gigabit.