What is the Difference Between PCIe Gen 3 & Gen 4?

4 x Motherboard nvme gen 4 in gen 3 slot 5+3 Phases Pure Digital VRM Solution with Low RDS MOSFETs 9 Supports 3rd Gen AMD Ryzen™ Processors 10 Dual Channel DDR4, 4 DIMMs 11 Dual nvme slot types Hi there, I'm trying my first build and I bought a samsung 980 PCIe NVMe SSD which is a PCIe Gen x4, NVMe interface

nvme 40 in 30 slot 2 NVMe SSDs are backward-compatible, so even with a Gen3 platform, you usually get better value from a Gen4 SSD even if it can't run at its rated speed