Will this x4 PCIe card fit in the x16 slot of a Dell PowerEdge r310?

If it's a motherboard slot you're talking about it means it's a x16 physical slot but there are only x4 electrical connections, meaning that

Will this x4 PCIe card fit in the x16 slot of a Dell PowerEdge r310? A GTX 780R9 290 for example may suffer a performance hit but an R7 260GTX 750 may not The PCIe slots are rated as they are because of

If it's a motherboard slot you're talking about it means it's a x16 physical slot but there are only x4 electrical connections, meaning that

pcie x1 in x16 slot View Jetson Orin Technical Specifications ; CSI Camera, 16-lane MIPI CSI-2 connector ; PCIe*, x16 PCIe slot supporting x8 PCIe Gen4 Key M slot with x4 PCIe

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All of them have great bifurcation abilities on the CPU itself, which is also documented AMD chips can split each PCIe Gen5 x16 bus into as