GTA 5 can run on just about any pc it just depends on your internet because i have a killer pc my specs are as follows
intel core i7 7700k (liquid cooled)
32GB of DDR4 ram
a GTX 1080ti graphics card
and a 800w power supply
also i got an upgraded wnc (wireless network card)
but my game only runs at a solid 2-3 fps because my internet is shit