Amazon EC2 Cost per GB of RAM May 25, 2011
Working on a project for a client, I wanted to know what the most $-efficient way to keep stuff in ram on EC2-east. These boxes will only have traffic within the AZ, so there were no bandwidth costs. I compared On-Demand prices with Reserved prices (assuming 1 year commitment for reserved.)
For High-Memory instances:
On-Demand:
about $21 per GB per month
Reserved (1yr commitment):
about $14 per GB per month
non-high-mem instances are about 50% more expensive when looking at the cost as $ per GB.
Here's the google doc: http://bit.ly/kK9qbj