I'm trying to help one of my friends out. His son has recently got into pc gaming. He's mostly looking to play TF2 CSS and some Minecraft. Their current family pc is a little underpowered for these games. I'm thinking it is mostly due to the fact that the chipset provides all of the graphics power. The specs of the pc can be found from the HP website here:
I'm thinking adding a graphics card in to his pc will be sufficient to satisfy his needs. Mostly low details and low resolutions. I'm just looking for some feedback with regards to a suitable gpu selection.