Is 7010's PCIe x16 slot only Gen ? Can I upgrade to ?

Hi, i have a tiny question on PCIe lanes My Mobo has 2 PCIe x16 slots The manual says that both of these ports operare in x16 modes,

On PCIe X1, X4 and X16 slots, the first 18 pins are all wired the same, so as long as the PCI-Express card fits in the PCI-Express slot, it

pcle slot What is PCI express card? How many types of PCIe cards are there? What does PCIe x8, or PCIe x16 mean? Can I use a PCIe card in a slot

pcle x1 slot A slot can provide multiple lanes, from 1 lane in the smallest slot to up to 16 in the largest slots Using two graphics cards normally entails