memcached

ElastiCache Valkey vs Redis OSS vs Memcached: Which Engine to Choose in 2026

For a new Amazon ElastiCache cluster in 2026, Valkey is the sensible default engine. It keeps the Redis OSS data model and commands, AWS prices it lowest, and new ElastiCache features such as durability arrive only on Valkey. Memcached still fits one narrow job well: a simple, multithreaded object cache that grows and shrinks by adding or removing nodes. Redis OSS mostly makes sense for an existing cluster that is not ready to move yet.

AWS ElastiCache: Types of Data You Can Store and Manage

  • ElastiCache for Redis:
    • Can handle different kinds of data like text, numbers, and lists of items.
    • Useful if you need to organize data in various ways, not just save single pieces of information.
  • ElastiCache for Memcached:
    • Mainly for storing single pieces of information and finding them quickly.
    • Good for simple needs like remembering a user's profile or speeding up commonly requested data.