NVIDIA RTX 3080 PCIe vs PCIe x16 Benchmarks

Both PCIe and PCIe are backward and forward compatible Remember those high-speed components that use PCIe slots

They assume, if your filling the second x16 slot, you have similarly populated the top slot also, which means the 16 lanes on the CPU would need to be split at

does turning up the volume on a slot machine help If the PCIe slot has x16 mechanical and x8 electrical, you can have 16 cards, but performance gets halved due to half the lanes That is how you can fit a PCIe

does it matter which gpu slot i use They assume, if your filling the second x16 slot, you have similarly populated the top slot also, which means the 16 lanes on the CPU would need to be split at