r6i.32xlarge

Analysis

The r6i.32xlarge is a memory optimized instance in the r6i series with 128 vCPUs and 1024 GiB of memory on Intel Xeon 8375C (Ice Lake) (up to 3.5 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.

Within the same generation and size, the r6a.32xlarge on AMD EPYC 7R13 costs $7.26/hour, 10.0% less ($589 a month). The other variants are the r6id.32xlarge at $9.68, the r6in.32xlarge at $11.16 and the r6idn.32xlarge at $12.50.

At $8.06/hour on demand in US East (N. Virginia), about $5,887 a month, the r6i.32xlarge is one of the cheaper ways to buy memory optimized capacity: only 16% of the 385 current memory optimized types cost less per vCPU-hour than its $0.0630.

Running it in N. Virginia instead of São Paulo saves $3,504 a month per instance: $8.06/hour against $12.86/hour, a 60% spread.

It is the largest of the 9 r6i sizes. Dropping to the r6i.24xlarge saves $1,472 a month.

Reserving it for a year with no upfront payment cuts the Linux rate to $5.33/hour, which beats on demand once it runs more than 66% of the time; three years brings it to $3.66/hour, 55% below on demand. Windows Server roughly adds 73% to the bill at $13.95/hour, because the licence is charged per vCPU.