m6gd.8xlarge

Analysis

The m6gd.8xlarge is a general purpose instance in the m6gd series with 32 vCPUs and 128 GiB of memory on AWS Graviton2 (up to 2.5 GHz), which makes it balanced at 4 GiB of memory per vCPU.

Running it in Mumbai instead of São Paulo saves $976 a month per instance: $0.9664/hour against $2.30/hour, a 138% spread.

Within the same generation and size, the m6g.8xlarge on AWS Graviton2 costs $1.23/hour, 15% less ($157 a month). The other variants are the m6a.8xlarge at $1.38, the m6i.8xlarge at $1.54 and the m6id.8xlarge at $1.90.

The newer m7gd.8xlarge on AWS Graviton3 is 18% dearer at $1.71/hour.

At $1.45/hour on demand in US East (N. Virginia), about $1,056 a month, the m6gd.8xlarge is one of the cheaper ways to buy general purpose capacity: only 22% of the 354 current general purpose types cost less per vCPU-hour than its $0.0452.

It has local instance storage (1 x 1900 GB NVMe SSD), which is fast but lost when the instance stops. Network: 12 Gigabit.

Looking beyond its own line, 5 of 37 current types with 32 vCPUs and similar memory are cheaper. The cheapest of those is the m7g.8xlarge on AWS Graviton3 at $1.31/hour.

Reserving it for a year with no upfront payment cuts the Linux rate to $0.9112/hour, which beats on demand once it runs more than 63% of the time; three years brings it to $0.6248/hour, 57% below on demand.