Amazon MemoryDB for Redis vs Amazon ElastiCache | LinkedIn
Amazon MemoryDB for Redis is a durable and fully-managed in-memory database combining both database and caching together thus providing microsecond read latency for data access to applications. Since, it is in-memory database, querying would be lightning faster in MemoryDB as compared to ElastiCache. Also it is strong consistency in read replica across multi Availability Zone (AZ) and hence more reliable during failover scenario. It uses distributed transaction log to enable data durability.Amazon MemoryDB for Redis FAQs – Amazon Web Services
MemoryDB maintains compatibility with open source Redis and supports the same set of Redis data types, parameters, and commands
