Please for help with a Pc purchase and information and tips?

I want to buy a gaming pc that has an intel 7 or ryzen7, the graphics card should also be good and in Fortnite the 240fps-360fps achievement needs your help and only have 700 euro-800 euro available.

Boy… Save another 1000 euro to 1500 euro on your already 800 euro, then you can start thinking about it.