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Apache Cassandra vs Amazon DynamoDB

Side-by-side comparison of Apache Cassandra and Amazon DynamoDB. Data-driven analysis for CTOs and engineering leaders.

Technical Profile

Apache Cassandra

Scalability
very high
Performance
very high
Learning Curve
steep
Maturity
mature
Languages: Java

Amazon DynamoDB

Scalability
very high
Performance
very high
Learning Curve
moderate
Maturity
mature
Languages: Any via SDK

When to Use

Apache Cassandra

  • +Need massive write throughput
  • +Multi-datacenter deployment
  • +Time-series data
  • +Always-on availability

Avoid Apache Cassandra when

  • -Complex queries needed
  • -Small team
  • -Limited ops expertise

Amazon DynamoDB

  • +Serverless architectures
  • +Unpredictable workloads
  • +Need auto-scaling
  • +AWS-native stack

Avoid Amazon DynamoDB when

  • -Complex queries required
  • -Multi-cloud strategy
  • -Strong consistency critical across regions

Compliance & Security

Apache Cassandra

SOC 2GDPRHIPAAPCI-DSS

Security Features

EncryptionAudit LogsRBACMFA

Amazon DynamoDB

SOC 2GDPRHIPAAPCI-DSS

Security Features

EncryptionAudit LogsRBACMFA

Operations

Apache Cassandra

Maintenance
high
Monitoring
high
Backup/Recovery
moderate
Hosting: self-hosted, cloud, managed

Amazon DynamoDB

Maintenance
low
Monitoring
low
Backup/Recovery
simple
Hosting: managed

Frequently Asked Questions

How does scalability compare between Apache Cassandra and Amazon DynamoDB?

Apache Cassandra offers very-high scalability, while Amazon DynamoDB offers very-high scalability. Consider your expected traffic and data volume when choosing.

Which has the easier learning curve: Apache Cassandra or Amazon DynamoDB?

Apache Cassandra has a steep learning curve, while Amazon DynamoDB has a moderate learning curve. Factor in your team's existing skills and onboarding timeline.

What are the pricing differences between Apache Cassandra and Amazon DynamoDB?

Apache Cassandra uses a free pricing model with a free tier. Amazon DynamoDB uses a usage-based pricing model starting at Pay per request, free tier 25GB with a free tier. Evaluate total cost of ownership including operational overhead.

Which option is better for compliance: Apache Cassandra or Amazon DynamoDB?

Apache Cassandra supports SOC 2, GDPR, HIPAA, PCI-DSS. Amazon DynamoDB supports SOC 2, GDPR, HIPAA, PCI-DSS. Always verify current certifications directly with the vendor.

Need help deciding between Apache Cassandra vs Amazon DynamoDB?

Use our interactive decision tool for a personalized recommendation.

Apache Cassandra vs Amazon DynamoDB — CTO Technology Comparison | The Art of CTO