Neptune lets you compare runs using in-depth analysis in the specialized view. Simply select them, by clicking on the eye icon:
Then click on the compare runs panel on the most-left side at the bottom:
In the comparison view, all metrics with the same name are placed on a single chart with one curve per run. When hovering with the mouse over a particular area, the values for the selected metrics are displayed below:
Another option is to compare details of the runs in the table form.
Each column represents one run and each row represents a single property and the data associated with it.
This table has a few useful features:
You can tick “show diff only” to show only the rows where the metrics, parameters and other run properties are different.
You can tick “show cell changes” to highlight where the metrics (or other properties) went up or down
You can change the reference run (to which the “show cell changes” refers to) by pinning a different run.