c6g.8xlarge

Analysis

The c6g.8xlarge is a compute optimized instance in the c6g series with 32 vCPUs and 64 GiB of memory on AWS Graviton2 (up to 2.5 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.

Running it in Mumbai instead of São Paulo saves $726 a month per instance: $0.6816/hour against $1.68/hour, a 146% spread.

Nothing else with 32 vCPUs and similar memory is cheaper: among 28 current same-shape types it has the lowest on-demand price.

At $1.09/hour on demand in US East (N. Virginia), about $794 a month, the c6g.8xlarge is one of the cheaper ways to buy compute optimized capacity: only 2% of the 291 current compute optimized types cost less per vCPU-hour than its $0.0340.

It is the cheapest of the 5 processor variants AWS sells at this size and generation. The c6gn.8xlarge on AWS Graviton2 costs 27% more, and the c6a.8xlarge, the c6gd.8xlarge and the c6i.8xlarge also sit above it.

The newer c7g.8xlarge on AWS Graviton3 is 6.6% dearer at $1.16/hour.

Reserving it for a year with no upfront payment cuts the Linux rate to $0.6854/hour, which beats on demand once it runs more than 63% of the time; three years brings it to $0.4700/hour, 57% below on demand.