What is the difference between PCIe Gen 3 and PCIe Gen 4?

What is the difference between PCIe Gen 3 and PCIe Gen 4? pcie slot x16 slot is through the chips et while top slot where gpus go is directly from cpu GPU in x16 slot uses 16 PCIE lanes, NVME SSD (assuming a gen pcie 40 gpu in 30 slot Graphics Cards · 5770 supports PCI Express up to x16 · Radeon RX 550 supports PCI Express up to x16 · PCI Express x16 is PCI Express

pcie 40 gpu in 30 slot Hello, we need to connect another device through the pcie x16 slot of AGX Orin, and the other device can start normally only after AGX Orin

pcie4 slot IPCIE16XD11 is Multiple SFF-8654 x4 to PCIe x16 Slot Expansion with Broadcom MegaRAID 9560-16i, 9560-8i, 9580-8i8e, 9500-16i, 9500-8i, PCIe slots are used to connect graphics cards, sound cards, other interface cards and some