Knowledge Base - Advanced templating
Geocode Factory 5 an produce responsive maps. There is not a exact method to do this, because each Joomla! template is different, and have it's own settings.
To make your map responsive, the most easy is to edit your map, and into the first tab, change the map size method from width to max-width and set the width to 100% (not px!).
For the height, this is a little different, and depends your template. You can try multiples configurations of settings.
Geocode Factory 5