first off all are using a desktop?(i3 6098p?)which should be posted on the gpu section.2nd is your ram itself wont be enough for gta 5.u need atleast 8GB of ram unless u like stutters.i doubt the i3 will handle gta 5 well as the games low more cpu cores.a gtx 750ti/1050/1050ti would works if u are looking for something cheap.