Amazon SNS Standard versus Amazon EventBridge (formerly CloudWatch Events)

17 Apr 2024

Learn how Amazon SNS Standard differs from Amazon EventBridge (formerly CloudWatch Events).

	Amazon SNS Standard	Amazon EventBridge (formerly CloudWatch Events)
Scaling	not disclosed (default soft limit depends on region; e.g., 9000 msg/sec in eu-west-1)	not disclosed (default soft limit depends on region; e.g., 10,000 msg/sec in eu-west-1)
Max. message size	256 KB	256 KB
Persistence	no	archiving is possible
Replication	Multi-AZ	Multi-AZ
Order guarantee	no	no
Delivery guarantee	at least once	at least once
Pricing	per message	per message
Protocols	AWS Rest API	AWS Rest API
AWS Integrations	Lambda, SQS, webhook	Lambda, SQS, SNS, and many more
License	AWS only	AWS only
Encryption at rest	yes	yes
Encryption in transit	yes	yes

Further reading