HD 7750 Enough For Gta V ?

There is no way to know how well GTA V will run on any PC until its out. I too have a 7750 and 1600*900 monitor so i am hoping i can play on medium. But since i have only a dual core cpu, i don't even know if GTA V will even support it.
Also you really need to upgrade your ram to 8GB. No way 4GB will let you play GTA V smoothly.