EC2 instace types

Mac: 

Mac instances are powered by Apple Mac mini computers and built on the AWS Nitro System. This EC2 family gives developers access to macOS so they can develop, build, test, and sign applications that require the Xcode IDE.

• Intel core i7 processors with 3.2 GHz (4.6 GHz turbo)
• 6 physical / 12 logical cores
• 32 GiB of memory
• Instance storage is available via Amazon Elastic Block Store (EBS)
• Mac instances are dedicated, bare-metal instances which are accessible in the EC2 console as dedicated hosts

TAG:

Amazon EC2 T4g instances are powered by Arm-based AWS Graviton2 processors and deliver up to 40% better price performance over T3 instances for a broad set of burstable general purpose workloads.

T4g instances accumulate CPU credits when a workload is operating below baseline threshold. Each earned CPU credit provides the T4g instance the opportunity to burst with the performance of a full CPU core for one minute when needed. T4g instances can burst at any time for as long as required in Unlimited mode.

Features:

• Free trial for t4g.micro instances for up to 750 hours per month until December 31st, 2021.
  
• Burstable CPU, governed by CPU Credits, and consistent baseline performance
• Unlimited mode by default to ensure performance during peak periods and Standard mode option for a predictable monthly cost
• Custom built AWS Graviton2 Processor with 64-bit Arm Neoverse cores
• EBS-optimized by default
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor