and what card should I buy? I want it extremely cheap tho. Like, just tell me what should I upgrade, don't recommend me any cards.
1)Priceless!
2)One of millions of gamers - I want it cheap but i still want my PC to be like those 10k$ Gaming Computers!
Use google, out there are special pages that compare CPUs, GPUs etc. looks for best price/perfomance cards/procesors etc and buy, anyway probably not something that you really need! if you dont have your own income or your parrents dont support all those finances, better forgot it now!
But anyway - when i was buying my PC, i started with best motherboard and shitty components. You need good motherboard so even after 5years you can put in new cards/chips/procesors. If you buy just some PC with good cards, but with old motherboard, you
will regret it after few years, when you want to upgrade, but none of new components will fit it. Ofcourse my motherboard is not new nowdays

(2011 i think)