tomc856 :
napster100 :
EDIT: I'm sorry, I miss read the post - it's been a long day.
A dedicated GPU would be a better option than a new CPU with integrated graphics and you maybe able to get away with buying a new CPU then too.
So, this would mean that I don't need to replace the whole CPU? That would be great. Would I need to buy new wires and if so, would I need to power off the old graphics chip and then use the new one? (I don't know if that makes sense)
Not necessarily, it's dependant on what CPU you have. Not particularly too sure what you mean by buying new wires. And the integrated graphics are only active if you plug the monitor cable into it, if you was to purchase a dedicated GPU, you'd plug the monitor cable into that, and it usually automatically uses that for graphics instead. You also cannot power it off, the only way to do that is buy powering down the whole machine.
If you list all of your specs, we can assist you further.