Mongodb atlas vs mongodb aws

The following tables provide a comparison of MongoDB Community Server and MongoDB Atlas Enterprise features.

DocumentDB and MongoDBArchitectureCompatibilityPerformanceDeploymentDeveloperOperationsPricing

Amazon DocumentDB instance pricing is more expensive than MongoDB Atlas, the fully managed MongoDB service. AWS DocumentDB starts at $200 per month for a single instance, with no free tier. Pricing is per instance-hour consumed, from the time an instance is launched until it is stopped or deleted. Partial instance hours are billed in one-second increments, but there is a 10-minute minimum charge following a billable status change such as creating, modifying, or deleting an instance.

Compare this with MongoDB Atlas, which has a perpetual free tier and starts at $9/mo for shared clusters, and around $60/mo for dedicated clusters.

The pricing comparison below is based on a default 3-node DocumentDB and MongoDB Atlas cluster, with backup storage equal to cluster storage. MongoDB Atlas is 8% to 19% less expensive.

*Pricing correct as of September 2020

Convenience of a Single AWS Bill

MongoDB Atlas is available via the AWS Marketplace, providing streamlined procurement along with all other AWS services. Buying Atlas through the Marketplace enables customers to benefit from:

• Consolidated billing through their AWS account

• Retirement of their Amazon Enterprise Discount Program commitment

• Simplified procurement with just a few clicks

• Integration with AWS Marketplace catalogs and reports

• A designated advisor from the AWS Marketplace team

What is DocumentDB?

Amazon DocumentDB is a NoSQL JSON document database service with a limited degree of compatibility with MongoDB.

DocumentDB is not based on the MongoDB server. Rather it emulates the MongoDB API, and runs on top of Amazon’s Aurora backend platform. This creates significant architectural constraints, functionality limitations and broken compatibility.

DocumentDB claims to support the MongoDB 4.0 API, which implies that it is at parity with MongoDB v4.0, released back in June 2018. In actual fact, the DocumentDB 4.0 feature set more closely resembles MongoDB 3.0 and 3.2, released in 2015. In addition, compatibility testing reveals it fails over 64% of the MongoDB API correctness tests. Applications written for MongoDB will need to be re-written to work with Amazon DocumentDB.

Interested in up-to-date results on DocumentDB's compatibility with the MongoDB API? Get the latest results at Is DocumentDB Really MongoDB?

The key differences between DocumentDB and MongoDB’s on-demand, elastic, and fully managed Atlas service are summarized below.