Capacity Reservation
When you create a Capacity Reservation, we reserve the specified capacity for your use. The reserved capacity is charged at the selected instance type’s On-Demand rate whether an instance is running in it or not. You can also use your regional reserved instances with your Capacity Reservations to benefit from billing discounts.
AWS Calculator
Reserved Instances
Platform[Linux, Windows], Tenancy[Default/Dedicated], Offering class[Convertible,Standard]
Instance type[c2.medium], Term[1 year/3 Years], Payment option[Partial, Upfront, None]
Savings Plan
Savings Plans also offer significant savings on your Amazon EC2 costs compared to On-Demand Instance pricing. With Savings Plans, you make a commitment to a consistent usage amount, measured in USD per hour. This provides you with the flexibility to use the instance configurations that best meet your needs and continue to save money, instead of making a commitment to a specific instance configuration
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SageMaker Savings Plans
Compute Savings Plans
EC2 Instance Savings Plans
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Compute Savings Plans [Better than EC2 Instance Savings Plan]
Applies to EC2 instance usage, AWS Fargate, and AWS Lambda service usage, regardless of region, instance family, size, tenancy, and operating system.
Term, Payment option, Purchase commitment [Hourly commitment]
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EC2 Instance Savings Plans
Applies to instance usage within the committed EC2 family and region, regardless of size, tenancy, and operating system.
Region,Instance family, Term, Payment option, Purchase commitment [Hourly commitment]
