r8gn.2xlarge

Analysis

The r8gn.2xlarge is a memory optimized instance in the r8gn series with 8 vCPUs and 64 GiB of memory on AWS Graviton4 (up to 2.8 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.

Within the same generation and size, the r8g.2xlarge on AWS Graviton4 costs $0.4713/hour, 35% less ($188 a month). The other variants are the r8i-flex.2xlarge at $0.5279, the r8i.2xlarge at $0.5557 and the r8gd.2xlarge at $0.5878.

Its price is almost flat across the 2 regions that offer it ($0.7287 to $0.7287/hour), so latency and data residency should decide where it runs. It is not offered in Ohio, Canada Central, São Paulo, Ireland, London, Frankfurt, Mumbai, Singapore, Sydney and Tokyo, so plan around that if you need a presence there.

On demand it costs $0.7287/hour in US East (N. Virginia), $532 a month if left running, which puts it mid-table for memory optimized types at the 62nd percentile per vCPU ($0.0911 per vCPU-hour) and the 78th percentile per GiB ($0.0114 per GiB-hour).

Looking beyond its own line, 30 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.

It is size 4 of 10 in the r8gn series. Stepping up to the r8gn.4xlarge gives 16 vCPUs and 128 GiB for $532 more a month. Dropping to the r8gn.xlarge saves $266 a month.