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Amazon SQS Standard versus Amazon EventBridge (formerly CloudWatch Events)

25 Nov 2020

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

Amazon SQS Standard Amazon EventBridge (formerly CloudWatch Events)
Scaling

nearly unlimited

not disclosed (default soft limit depends on region; e.g., 2400 msg/sec in eu-west-1)

Max. message size

256 KB

256 KB

Persistence

up to 14 days

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

Lambda, SQS, SNS, and many more

License

AWS only

AWS only

Encryption at rest

yes

no

Encryption in transit

yes

yes