Here's how the various versions of PCI Express compare:. All PCI Express versions are backward and forward compatible, meaning no matter what version the PCIe card or your motherboard supports, they should work together, at least at a minimum level. As you can see, the major updates to the PCIe standard drastically increased the bandwidth available each time, greatly increasing the potential of what the connected hardware can do.
Version improvements also fixed bugs, added features, and improved power management, but the increase in bandwidth is the most important change to note from version to version. PCI Express, as you read in the sizes and versions sections above, supports pretty much any configuration you can imagine. If it physically fits, it probably works One important thing to know, however, is that to get the increased bandwidth which usually equates to the greatest performance , you'll want to choose the highest PCIe version that your motherboard supports and choose the largest PCIe size that will fit.
For example, a PCIe 3. If your motherboard only supports PCIe 2. Most motherboards and computers manufactured in or later probably support PCI Express v3. Check your motherboard or computer manual if you're not sure. If you can't find any definitive information on the PCI version that your motherboard supports, we recommend buying the largest and latest version PCIe card, so long as it'll fit, of course. Video game developers are always looking to design games that are ever more realistic, but can only do that if they can pass more data from their game programs into your VR headset or computer screen; faster interfaces are required for that to happen.
Because of this, PCI Express won't continue to reign supreme resting on its laurels. PCI Express 5. There are a number of other non-PCIe interface standards being looked at by the technology industry but since they would require major hardware changes, PCIe looks to remain the leader for some time to come.
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View All Articles. View all OnLogic Computers. Visit OnLogic. Shop OnLogic. Rugged Computers. Heavy Industrial Computers. Light Industrial Computers. Fanless Industrial Computers. Edge Servers. Panel PCs. OnLogic Customer Stories. Close Sliding Bar Area. PCIe peripheral component interconnect express is an interface standard for connecting high-speed components.
PCIe slots come in different physical configurations: x1, x4, x8, x16, x A PCIe x1 slot has one lane and can move data at one bit per cycle. A PCIe x2 slot has two lanes and can move data at two bits per cycle and so on. Bandwidth doubles with each generation. Your PCIe card will run at the lowest generation present. So if you put a PCIe 2. PCIe 4.
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