Question: what is the difference between pci express x16 and 2.0?
Answer: X16 is the width of the slot and the corresponding amount of bandwidth available to and from devices connected to that slot. ... 1.0 and 2.0 refers the versions of PCI Express slot, with 2.0 the bandwidth and speed is twice the speed of 1.0, so far the x16 PCI Express slot is the largest slot in PCI Express family.