r8i.48xlarge

Analysis

The r8i.48xlarge is a memory optimized instance in the r8i series with 192 vCPUs and 1536 GiB of memory on Intel Xeon Scalable (Granite Rapids) (up to 3.9 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.

Within the same generation and size, the r8g.48xlarge on AWS Graviton4 costs $11.31/hour, 15% less ($1,479 a month), though switching means rebuilding software for arm64. The other variants are the r8gd.48xlarge at $14.11, the r8a.48xlarge at $15.34 and the r8id.48xlarge at $15.97.

Running it in N. Virginia instead of São Paulo saves $5,794 a month per instance: $13.34/hour against $21.27/hour, a 60% spread.

On demand it costs $13.34/hour in US East (N. Virginia), $9,736 a month if left running, which puts it mid-table for memory optimized types at the 33rd percentile per vCPU ($0.0695 per vCPU-hour) and the 45th percentile per GiB ($0.00868 per GiB-hour).

Compared with the previous generation, it costs 5.0% more than the r7i.48xlarge on Intel Xeon Scalable (Sapphire Rapids) ($464 more a month per instance), in exchange for the newer processor.

Looking beyond its own line, 4 of 20 current types with 192 vCPUs and similar memory are cheaper. The cheapest of those is the r6a.48xlarge on AMD EPYC 7R13 at $10.89/hour.