Save money and update your build my man. Gta in particularly is very cpu bound, so even with a gpu upgrade, it wouldn't run properly. MAYBE you could get away with it with either a 1030 or a 1050, but seriously, just save money and get yourself a new build. It's time to do an update. You could build a pc that would feel like a rocketship compared to what you have now with little over 500 eu/dollars. Spending 200 for a card that should cost 100 is really not cost efficient, especially when your cpu won't even properly be able to run with it to begin with. Just bite the bullet. Idm try to put up a decent budget build if you need a hand components wise. And im sure others won't mind neither.