3090 PCI-e gen3 vs gen4 performance?

pcie 4 gpu in pcie 3 slot   Dan pcie 50 x16 slot

PCIE cards are backwards compatible with the and the slots, but you won't be able to enjoy the full extent of your new PCIE card

Yes, PCIe standards are thankfully backwards compatible, meaning that a PCIe device will work in a PCIe slot, but it will only be able to reach PCIe PCIe vs PCIe

wild west slot machine PCIe vs PCIe 4 minutes 25 seconds