m6g.8xlarge

Analysis

The m6g.8xlarge is a general purpose instance in the m6g series with 32 vCPUs and 128 GiB of memory on AWS Graviton2, which makes it balanced at 4 GiB of memory per vCPU.

Running it in Mumbai instead of São Paulo saves $839 a month per instance: $0.8096/hour against $1.96/hour, a 142% spread.

Nothing else with 32 vCPUs and similar memory is cheaper: among 37 current same-shape types it has the lowest on-demand price.

At $1.23/hour on demand in US East (N. Virginia), about $899 a month, the m6g.8xlarge is one of the cheaper ways to buy general purpose capacity: only 9% of the 354 current general purpose types cost less per vCPU-hour than its $0.0385.

It is the cheapest of the 5 processor variants AWS sells at this size and generation. The m6id.8xlarge on Intel Xeon 8375C (Ice Lake) costs 54% more, and the m6a.8xlarge, the m6gd.8xlarge and the m6i.8xlarge also sit above it.

The newer m7g.8xlarge on AWS Graviton3 is 6.0% dearer at $1.31/hour.

Reserving it for a year with no upfront payment cuts the Linux rate to $0.7728/hour, which beats on demand once it runs more than 63% of the time; three years brings it to $0.5356/hour, 57% below on demand.