The simple reason is that many of our customers use our deployment solutions for development work, tutorials, and for demos. These customers do not require max CPU availability that would be required for production commercial systems. Why not take advantage of the cost savings that would be provided by the t3a?
The T3a instances feature AMD EPYC 7000 series processors with an all core turbo clock speed of 2.5 GHz. The AMD-based instances provide additional options for customers that do not fully utilize the compute resources and can benefit from a cost savings of 10%. ~ AWS
Hey we all like to save money from AWS whenever we can. Look for the t3a to be rolled out in the next two weeks. All non-car instances should already have the class as available. Simply stop the EC2, change type, and restart.
Oh, and watch your AWS charges drop by using our new A51 billing module.