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The recently released RTX 3080 can be used with both PCI Express 3.0 and 4.0, with only marginal differences in favor of 4.0. So, if PCIe 2.0 has 4 GT/s (Giga transfers per second), PCIe 3.0 has 8, and so on.Ĭurrently, in 2022, 3.0 is probably the most widely used slot, but 4.0 is gaining momentum. The general trend has been that every new version doubles the previous version’s performance. The truth is, as far as compatibility goes, there isn’t much difference between them.įor example, a PCIe 3.0 can run PCIe 1.0 cards and vice versa, although if you run a modern GPU on an older slot you will experience bandwidth limitations. PCIe x16 slots have several different numbered suffixes and you might be wondering what these signify. This brilliant technology is the reason that modern graphics cards can fit into most motherboards. PCIe x16 Slot Is The Key Most graphics cards use the PCIe x16 slot to connect to your motherboard
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