m8idn.32xlarge

Analysis

The m8idn.32xlarge is a general purpose instance in the m8idn series with 128 vCPUs and 512 GiB of memory on Intel Xeon Scalable (Granite Rapids) (up to 3.9 GHz), which makes it balanced at 4 GiB of memory per vCPU.

Within the same generation and size, the m8i.32xlarge on Intel Xeon Scalable (Granite Rapids) costs $6.77/hour, 45% less ($3,976 a month). The other variants are the m8id.32xlarge at $8.35, the m8in.32xlarge at $10.69 and the m8ib.32xlarge at $10.69.

Running it in N. Virginia instead of Tokyo saves $2,558 a month per instance: $12.22/hour against $15.72/hour, a 29% spread. It is not offered in Canada Central, São Paulo, London, Frankfurt, Mumbai, Singapore and Sydney, so plan around that if you need a presence there.

Per vCPU it is one of the dearer general purpose types: 93% of the 354 current types in the family cost less than its $0.0955 per vCPU-hour. The premium mostly pays for the local NVMe disk. On demand it is $12.22/hour in US East (N. Virginia), or $8,921 for a 730-hour month.

Looking beyond its own line, 10 of 12 current types with 128 vCPUs and similar memory are cheaper. The cheapest of those is the m6a.32xlarge on AMD EPYC 7R13 at $5.53/hour.