c8in.32xlarge

Analysis

The c8in.32xlarge is a compute optimized instance in the c8in series with 128 vCPUs and 256 GiB of memory on Intel Xeon Scalable (Granite Rapids) (up to 3.9 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.

Within the same generation and size, the c8i.32xlarge on Intel Xeon Scalable (Granite Rapids) costs $6.00/hour, 31% less ($1,980 a month). The other variants are the c8id.32xlarge at $7.10 and the c8ib.32xlarge at $8.71.

Running it in N. Virginia instead of Sydney saves $1,943 a month per instance: $8.71/hour against $11.37/hour, a 31% spread. It is not offered in Canada Central, São Paulo, London and Mumbai, so plan around that if you need a presence there.

Per vCPU it is one of the dearer compute optimized types: 92% of the 291 current types in the family cost less than its $0.0680 per vCPU-hour. The premium mostly pays for the very fast networking. On demand it is $8.71/hour in US East (N. Virginia), or $6,358 for a 730-hour month.

Looking beyond its own line, 7 of 9 current types with 128 vCPUs and similar memory are cheaper. The cheapest of those is the c6a.32xlarge on AMD EPYC 7R13 at $4.90/hour.

It is size 9 of 11 in the c8in series. Stepping up to the c8in.48xlarge gives 192 vCPUs and 384 GiB for $3,179 more a month. Dropping to the c8in.24xlarge saves $1,589 a month.