r7g.medium

Analysis

The r7g.medium is a memory optimized instance in the r7g series with 1 vCPU and 8 GiB of memory on AWS Graviton3 (up to 2.5 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.

Running it in Mumbai instead of São Paulo saves $34.82 a month per instance: $0.0375/hour against $0.0852/hour, a 127% spread.

At $0.0536/hour on demand in US East (N. Virginia), about $39.13 a month, the r7g.medium is one of the cheaper ways to buy memory optimized capacity: only 4% of the 385 current memory optimized types cost less per vCPU-hour than its $0.0536.

It is the cheapest of the 3 processor variants AWS sells at this size and generation. The r7a.medium on AMD EPYC 9R14 costs 42% more, and the r7gd.medium also sit above it.

Compared with the previous generation, it costs 6.3% more than the r6g.medium on AWS Graviton2 ($2.34 more a month per instance), in exchange for the newer processor. The newer r8g.medium on AWS Graviton4 is 9.9% dearer at $0.0589/hour.

It is the smallest of the 8 r7g sizes. Stepping up to the r7g.large gives 2 vCPUs and 16 GiB for $39.05 more a month.

Reserving it for a year with no upfront payment cuts the Linux rate to $0.0354/hour, which beats on demand once it runs more than 66% of the time; three years brings it to $0.0243/hour, 55% below on demand.