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Intel Z890 PCIe Lanes: What You Get and How to Spot Lane Sharing

An Intel Z890 board gives you a CPU-attached x16 slot (Gen5 on most boards) plus a set of CPU and chipset M.2/PCIe slots whose la…

AMD X870E PCIe Lanes: What You Get and How to Spot Lane Sharing

An AMD X870E board gives you a CPU-direct Gen5 x16 slot for the GPU plus a CPU-direct Gen5 x4 M.2 slot, with everything else rout…

Motherboard PCIe Lanes: How Many You Need and How Lane Sharing Works

You need 16 PCIe lanes for a graphics card and 4 lanes for a primary NVMe SSD — 20 lanes minimum. Modern CPUs supply roughly 20–2…

What Is a PCIe Lane Map and How Do You Read One?

A PCIe lane map is a diagram of where every PCIe lane on a motherboard comes from and where it goes — which slots are wired direc…

How to Compare Motherboards by PCIe Lanes and Bandwidth Conflicts

Compare motherboards by tracing where each PCIe lane comes from (CPU or chipset) and where it goes (which slot), then check lane …