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

What is the difference between PCIe Gen 3 and PCIe Gen 4? pcieslot Ultra Durable PCIe Slot • PCIe® Slot ‧ Lower temperature, smaller size, better thermal characteristics PCIe * Hardware Design 1 PCIe Slot pcieslot Specifications x 1

pcieslot PCIe Adapter Riser Card adds four short , 8x PCIe Gen2 low

pcieslot PCIe slot mapping from compute sleds · Four-bay chassis—Each half-width compute sled is mapped to two PCIe slots · Eight-bay chassis—Each quarter-width compute PCI Express is a computer expansion card standard and is used most often for video cards PCIe is intended as a replacement to PCI