What kind of license is needed to access GeoAnalytics Server?
What is ArcGIS GeoAnalytics Server?—Documentation | ArcGIS Enterprise
Has its own help files
ArcGIS GeoAnalytics Server License. Every license of ArcGIS GeoAnalytics Server is for 4 CPU cores (physical cores). If your deployment has 8 CPU cores, you need two 4-core licenses.