The processor is more than fine to run CS:GO. It has the required amount of RAM, Processor's good, Supports Windows 8.1, and 2TB is enough to house it. The only thing I'm a little bit dubious about is the graphics card. According to steam, it should run CS:GO fine (The requirement is 256MB of VRAM and you have 1024MB of VRAM) so it should run perfect, even if you MIGHT have to turn down the graphics a bit (It might run perfect on highest, like mine). As for minecraft, so long as you don't mod it, you should be fine.