PCIe 3 vs 4 for Gaming GPUs and SSDs

obviously, a pcie 4 NVMe drive will get maximum performance in a pcie 4 slot, but I'm trying to get a sense of how the latest drives

With the previous generation, the maximum bandwidth available on an slot with its four PCIe lanes was 4GBs, so read and write speeds on

pcieslot 2 ports take up less physical space than ports, motherboard manufacturers typically add ports rather than ports As compared to M2,

pcie slot size Rocket 4 ssds are fast, but still not fast enough yet to max out a PCIE Gen4 M2 slot yet Samsung 980 PRO and a couple others similar to it