This is a good 2012 article about estimating AWS size [1]<p>[1] <a href="https:&#x2F;&#x2F;huanliu.wordpress.com&#x2F;2012&#x2F;03&#x2F;13&#x2F;amazon-data-center-size&#x2F;" rel="nofollow">https:&#x2F;&#x2F;huanliu.wordpress.com&#x2F;2012&#x2F;03&#x2F;13&#x2F;amazon-data-center-...</a>