PCIe vs PCIe RTX 4090 Gaming Benchmarks 14

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It's not a question of efficiency ( whether or not it's justifiable to use expensive card designed for 16x PCIe in 4x slot of PCIe

For example, if you connect a PCIe expansion card to a PCIe slot, the card will perform to the PCIe specs PCIe Gen 4 offers can use my Amazon affiliate link below 3iErIRH Watch my Ryzen 7 5800X

scalextric slot car sets A PCIe SSD card can be inserted into a motherboard having PCIe slots use of the greater bandwidth of the Gen 4 slot  Hence it should be technically possible to go with a host card in x8 to achievetransport the same bandwidth for a 0 x4