Hi justin_106
Could you post your system specs if you have a pc/laptop please.
CPU and GPU are both important but most people end up swapping the GPU out every two years or so due to a new generation of cards coming out.
A graphics card is in charge of rendering the frames for the display and it requires a lot of horse power so to say to do so while the CPU is in charge of pretty much everything else.
RAM is also something you should keep decently big, most people have started moving up to 16GB now, as the CPU then has more room to pass stuff around.