[aurareturn]

Isn't the most expensive thing power and cooling?

IE. if you replace the 5 year old Xeons with new ultra-efficient ARM chips, wouldn't that save you more power and cooling over x amount of time?

Genuine question.

[kaliszad]

According to James Hamilton who is a distinguished engineer at AWS no: https://perspectives.mvdirona.com/2010/09/overall-data-cente... and https://perspectives.mvdirona.com/2008/12/annual-fully-burde...

And you can watch him say it too: https://youtu.be/kHW-ayt_Urk?si=DKyw0-Pk-dhU5zFG&t=323

[aurareturn]

The first link refers to "servers" - not "CPUs". I assume "servers" contains everything server hardware related, not just the CPU.