Archera Guaranteed Reserved Instances (GRIs) offer better savings rates and less commitment risk to equivalent 1 year Reserved Instances and Savings Plans.
Since each instance type can have a different savings percentage from AWS, the following table is a guide towards the difference. The example is based off an m5.large running in US-East-1 at the start of 2022.
Savings Vehicle | Approx. Savings Rate | Commitment RIsk |
Archera GRI - 30 day term | 29% | 30 days |
Archera GRI - 1 year term | 46% | 1 year |
Savings Plan - 1 year | 27% | 1 year |
Reserved Instance - 1 year | 35% | 1 year |