well I wouldn't account that benchmark. Not for mongodb and especially not for PostgreSQL. TechEmpower Benchmarks are mostly not really showcasing real world. Just looking at their PostgreSQL config will highlight that. (Especially: https://github.com/TechEmpower/FrameworkBenchmarks/blob/mast...) And also most of the time their libraries/frameworks are outdated or not even configured correctly. It shouldn't be taken as a reference in any way without additional benchmarking.