Am i bottle necking Running PCIE with 3080 TI?

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The current PCIe Gen 3 slots have started to be replaced with PCIe Gen 4, resulting in double the transfer and bandwidth speed, which means you

pcie gpu slot Both PCIe and slots can be configured with x1, x2, x4, x8, and x16 lanes, but PCIe slots have a higher transfer rate per lane and

pcie slot splitter PCIe X16 Cable Graphics Card Support GPUs no more than 140 x 325mm, GPU Slots GPU 140×325×65 CPU Maximum Height 48mm GPU