real gaming cards at AMD starts at xxx60, a bit like at nvidia where it is gtX x60 or xx60
below that it is just a waste of money
if you plan to do gaming on PC, you should be aware that it'll cost you more than the price of a console, consoles started at 400$ (well now at 300$), for a PC you should at least plan on 6-800$
that usually means, 200$ gpu + 100$ MB + 150$ CPU + RAM, case, HDD, PSU, ...
if you can't get that kind of money you should continue playing on consoles because it'll be cheaper and you'll have a better experience than on a low end PC due to the optimization developpers do for consoles and do not for PC