So if your graphics card power consumption is more than 150W then it will definitely come with an 8-pin connector or two 6-pin connectors. The 8-pin power connector can deliver a maximum of 150W to your graphics card. Most of the mid-range graphics cards from both Nvidia and AMD come with the 6-pin power connector. A graphics card with one 6-pin power connector can have a maximum power consumption of 150 Watt as it will get 75W from the PCI Express x16 slot and 75W from the 6-pin connector. So if your graphics card power consumption is more than 75W then it will have one 6-pin PCI-E power connector for its working. Below you can see the PCI-Express x16 connector of the graphics card.Ī 6-pin power connector can supply 75 Watt to the graphics card. Even some mid-range graphics cards can also work on the power from the PCI Express x16 slot alone but higher mid-range graphics cards and high-end graphics card requires external power from the PSU through 6-pin and 8-pin power connectors. A PCI Express x16 slot can provide a maximum of 75 Watts to the graphics card which is enough for entry-level, low profile, and budget graphics cards. PCI Express x16 connector connects your graphics to the motherboard and is the only interface through which communication happens. PCI Express x16 connectorĮvery modern-day graphics card comes with a PCI Express x16 connector that goes in the PCI Express x16 slot of your motherboard. Here are the various connectors through which graphics cards get their power. Must Read: Best Budget Power Supply for Graphics Cards Graphics Card Power Connectors

Power supply with 3 8 pin connector