Performance benchmark: PostgreSQL/ MongoDB
Helping developers choose a database

whitepaper

Running a fair comparison between two databases that follow different approaches (relational vs document) is extremely difficult.
This benchmark compares PostgreSQL and MongoDB Community Serve to help developers choose between the two. Using three types of benchmarks, this paper analyses the capabilities and performance of PostgreSQL and MongoDB in the same data design, with different active dataset sizes, and tests the performance of transactions.
Download the paper to see which you should choose and a detailed breakdown of the reasons why.