I'm getting a bit into PC gaming and I have a pretty decent computer, but my graphics card is awful. I'm wondering if I can replace it without an issue? I'm not looking to play Skyrim or anything like that, just Minecraft, Goat Simulator, etc.
I have a
 Gateway
 Windows 7
 64 Bit operating system
 4GB of RAM
 Processor: AMD E1-1200 APU with Radeon HD graphics 1.40 GHz
My lack of knowledge is unbearable, I know.
