r8gb.24xlarge

Analysis

The r8gb.24xlarge is a memory optimized instance in the r8gb series with 96 vCPUs and 768 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.24xlarge on AWS Graviton4 costs $5.66/hour, 35% less ($2,255 a month). The other variants are the r8i.24xlarge at $6.67, the r8gd.24xlarge at $7.05 and the r8a.24xlarge at $7.67.

Its price is almost flat across the 2 regions that offer it ($8.74 to $8.74/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 $8.74/hour in US East (N. Virginia), $6,384 a month if left running, which puts it mid-table for memory optimized types at the 64th percentile per vCPU ($0.0911 per vCPU-hour) and the 80th percentile per GiB ($0.0114 per GiB-hour).

Looking beyond its own line, 24 of 35 current types with 96 vCPUs and similar memory are cheaper. The cheapest of those is the r5a.24xlarge on AMD EPYC 7571 at $5.42/hour.

It is size 9 of 10 in the r8gb series. Stepping up to the r8gb.48xlarge gives 192 vCPUs and 1536 GiB for $6,384 more a month. Dropping to the r8gb.16xlarge saves $2,128 a month.