Amazon DynamoDB vs Amazon MemoryDB

Amazon DynamoDB plans

• Free tierFree
• On-demand capacity—
• Provisioned capacity—
• DynamoDB Free TierFree

Amazon MemoryDB plans

• On-demand nodes—
• Reserved nodes—

Pick Amazon DynamoDB if…

DynamoDB may suit teams building cloud applications that need a managed NoSQL database, automatic scaling, or multi-Region operation. Its listed workloads include mission-critical, internet-scale, agentic, modernization, and Internet of Things applications.

Pick Amazon MemoryDB if…

It is aimed at workloads needing a durable, very fast Valkey- or Redis OSS-compatible primary database. AWS lists real-time generative AI, web and mobile apps, online games, and media streaming.