PCIe 4 vs PCIe 3: Do you need Gen 4 in 2020?

What Are PCIe and ? pcie 4 in pcie 3 slot ssd With dual NVMe PCIe * connectors onboard, GIGABYTE Motherboards bring users to experience NVMe mode or SATA mode connectivity for SSD devices pcie 30 x1 slot 2_1 slot on my ASUS ROG Strix x570i mobo The only thing I can find in bios is set to _1 link = Gen 4 Yet the SSD is still running at Gen 3

pcie 3 slot Whether it means anything to you or not I don't know, but it is possible the PCIe v4 SSD will generate less heat and consume less power running