I have a Lenovo H430 desktop that has an integrated graphics card. I want to add an additional graphics card and I read the motherboard specs from which I found I have
3 PCIE x1 slots and
1 PCIE x16 slot.
I searched and found there are both x1 and x16 graphics cards. Which one to buy? Also, there are PCIE x16 2.1 and 3.0. What is the difference and how do I figure if which one goes in my system?