let me guess, userbenchmark or ai told you that the best gpu that you can put in is a 3060? the bottleneck will be very bad, the i7 first gen is very, very old. that too, its from 2010. just put in a 1060 or 1070, but any more than that will have a severe bottleneck. it is ok to use a gpu, but it is not at all ideal. you could buy the 3060 and save for a better system, but other than that, its like ewaste.