Both M5a and R5a instances were first introduced in November of 2018. M5ad and R5ad instances were launched in March of 2019, followed by T3a in April of 2019. All the AMD instances feature 2.5 GHz AMD EPYC 7000 series processors, and are variants of Amazon EC2’s general purpose (M5), memory optimized (R5), and burstable general-purpose (T3) instance families.
The AMD-based instances provide additional options for customers who are looking to achieve a 10% cost savings on their Amazon EC2 compute environment for a variety of workloads. M5a and M5ad instances are ideal for business-critical applications, web and application servers, back-end servers for enterprise applications, gaming servers, caching fleets, and app development environments. R5a and R5ad instances are ideal for high performance databases, distributed web scale in-memory caches, mid-size in-memory databases, real time big data analytics, and other enterprise applications. T3a instances offer a balance of compute, memory, and network resources for a broad spectrum of general purpose workloads including micro-services, low-latency interactive applications, small and medium databases, virtual desktops, development environments, code repositories, and business-critical applications.
With these regional expansions, M5a, M5ad, R5a, R5ad and T3a instances are available today in Asia Pacific (Seoul, Sydney, Singapore), Europe (Paris, London, Ireland, Frankfurt), US West (N. California) Regions. In addition, M5a and R5a instances are available in Asia Pacific (Seoul), and Europe (London) Regions. M5a, M5ad, R5a and R5ad instances are available in 8 sizes, with 2, 4, 8, 16, 32, 48, 64, and 96 vCPUs, and T3a instances are available in 7 sizes, with 2, 4 and 8 vCPUs. These new instances can be purchased as On-Demand, Reserved or Spot Instances.