Russia is wealthier than Ukraine whether you go by total GDP or GDP per capita and whether you go by nominal GDP or GDP adjusted for purchasing power. Just looking at the maps at the tops of these next 2 pages was enough to verify that:
https://en.wikipedia.org/wiki/List_of_countries_by_GDP_(nomi...
https://en.wikipedia.org/wiki/List_of_countries_by_GDP_(PPP)...