Google is your friend. If you searched for those key parts you would see the CPU came out in 2009, 8 years ago. So yeah it was a fine and still a fine CPU, but not a i7 Overclocking Kabylake. At least your running DDR3 RAM with it, which will be fine. The GPU though was for RENDERING to CREATE the stuff you SEE in the game not to 'play' the game. So yeah you could try and replace the GPU with say a 1050TI, but you have to make sure it 'fits' that specific case, the PSU (Power Supply) should be pretty nice for a CAD building PC like that.