I am looking to buy a new desktop, but reviews say that the AMD R7 240 2GB graphics card it comes with is not useful for the games i wish to play, such as Overwatch and Minecraft. What can be considered a good graphics card to upgrade it? Info on the computer is here: https://www.amazon.com/CyberpowerPC-GUA3100A-Desktop-FX-4300-Windows/dp/B0111MTSZ8/ref=cm_cd_al_qh_dp_t#Ask