The price reduction varies by instance type and by Region, with Reserved Instance prices dropping by as much as 37 percent and On-Demand instance prices dropping up to 10 percent. The chart below highlights the price decreases for Linux instances in our US-EAST Region, although AWS sats that they are lowering prices in nearly every Region for both Linux and Windows instances.
These price reductions also apply to Amazon Elastic MapReduce and Amazon Relational Database Service (RDS). Prices for new RDS Reserved Instances will decrease by up to 42 percent, with On-Demand Instances for RDS and ElastiCache decreasing by up to 10 percent.
Earlier this month, AWS lowered prices on its Simple Storage Service enabling customers with 50 TB of storage a 12 percent on their monthly bill. It's not clear whether AWS is lowering costs due to a lack of projected sales numbers or if they are just attempting to attract new customers.
Here's a full list of Amazon EC2 pricing