x8g.48xlarge

Analysis

The x8g.48xlarge is a memory optimized instance in the x8g series with 192 vCPUs and 3072 GiB of memory on AWS Graviton4 (up to 2.7 GHz), which makes it very memory-heavy at 16 GiB of memory per vCPU.

Nothing else with 192 vCPUs and similar memory is cheaper: among 2 current same-shape types it has the lowest on-demand price.

Running it in N. Virginia instead of Frankfurt saves $5,445 a month per instance: $18.76/hour against $26.22/hour, a 40% spread. It is not offered in Canada Central, São Paulo, London, Mumbai, Singapore and Tokyo, so plan around that if you need a presence there.

It is the cheapest of the 2 processor variants AWS sells at this size and generation. The x8i.48xlarge on Intel Xeon Scalable (Granite Rapids) costs 12% more, and no others also sit above it.

Per vCPU it is one of the dearer memory optimized types: 75% of the 385 current types in the family cost less than its $0.0977 per vCPU-hour. The premium mostly pays for the extra memory per vCPU. On demand it is $18.76/hour in US East (N. Virginia), or $13,694 for a 730-hour month.

Reserving it for a year with no upfront payment cuts the Linux rate to $11.56/hour, which beats on demand once it runs more than 62% of the time; three years brings it to $6.41/hour, 66% below on demand.