r8g.2xlarge

Analysis

The r8g.2xlarge is a memory optimized instance in the r8g series with 8 vCPUs and 64 GiB of memory on AWS Graviton4 (up to 2.7 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.

Running it in Mumbai instead of São Paulo saves $306 a month per instance: $0.3303/hour against $0.7499/hour, a 127% spread.

It is the cheapest of the 5 processor variants AWS sells at this size and generation. The r8a.2xlarge on AMD EPYC 9R45 costs 36% more, and the r8i-flex.2xlarge, the r8i.2xlarge and the r8gd.2xlarge also sit above it.

At $0.4713/hour on demand in US East (N. Virginia), about $344 a month, the r8g.2xlarge is one of the cheaper ways to buy memory optimized capacity: only 12% of the 385 current memory optimized types cost less per vCPU-hour than its $0.0589.

Compared with the previous generation, it costs 10% more than the r7g.2xlarge on AWS Graviton3 ($31.30 more a month per instance), in exchange for the newer processor. The newer r9g.2xlarge on AWS Graviton5 is 9.0% dearer at $0.5137/hour.

Looking beyond its own line, 5 of 45 current types with 8 vCPUs and similar memory are cheaper. The cheapest of those is the r6g.2xlarge on AWS Graviton2 at $0.4032/hour.