Guys my mobo supports pci-e video cards up to x4 speed.We all know that all the pci-e video cards are 16x.So will a pci-e x16 card work in my pci-e x4 mobo and with how much performance penalty if it does work...........?????????
x16 and x4 aren't speeds. They signify the amount of Tx/Rx serial lanes there are to that PCIe slot. That means a x16 video card has 16 Tx and 16rx data lanes and needs that many supported on the motherboard (chipset). However, if you had a x16 motherboard, you could plug in a x4 card and the other 12 lanes are tri-stated.
x16 and x4 aren't speeds. They signify the amount of Tx/Rx serial lanes there are to that PCIe slot. That means a x16 video card has 16 Tx and 16rx data lanes and needs that many supported on the motherboard (chipset). However, if you had a x16 motherboard, you could plug in a x4 card and the other 12 lanes are tri-stated.