What are the different types of EC2 instances?

Daniel

I would like to understand the different types of Amazon EC2 (Elastic Compute Cloud) instances and how they are designed to support various workload requirements. What are the main instance families—such as General Purpose, Compute Optimized, Memory Optimized, Storage Optimized, and Accelerated Computing—and how do they differ in terms of performance, CPU power, memory capacity, and storage capabilities? Additionally, how do factors like workload type, scalability needs, cost considerations, and pricing models (such as On-Demand, Reserved, and Spot Instances) influence the choice of EC2 instances for applications like web hosting, databases, big data processing, or machine learning workloads?

Sarah

Amazon EC2 provides different instance families designed to handle specific workload requirements. General Purpose instances offer a balanced mix of CPU, memory, and networking for common applications like web hosting. Compute Optimized instances are built for CPU-intensive tasks such as data processing, while Memory Optimized instances support applications that require large amounts of memory, like databases. Storage Optimized instances are designed for high-speed data storage and input/output operations, and Accelerated Computing instances use GPUs for advanced workloads such as machine learning and graphics processing. When choosing an EC2 instance, organizations consider factors like workload type, scalability needs, and cost, along with pricing options such as On-Demand, Reserved, and Spot Instances to achieve the best balance between performance and budget.