So my brother is wanting to play with me and my friends who are all using $400+ custom gaming PCs. He doesn't have much money at all in fact he is considering around $100 max. Doing some research I have found that a video card like a R7 240 or R7 250 would do what he would like ($50-75). He is rocking a RS780M03G1-8EKSMH Gateway PC/Motherboard with an AMD Phenom ii x4 820 CPU. I'm wondering if a GPU upgrade is possible.