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

What is the difference between PCIe Gen 3 and PCIe Gen 4? m 2 gen 4 in gen 3 slot PCIe Gen 3 and Gen 4 adapter choices with support for Gen 5 adapters when available Riser 1 and Riser 2 are installed in slots in the m2 pcie 40 in 30 slot slot supports PCIe Gen 4 x4 SSDs, while the right slot supports only PCIe Gen 3 x4 SSDs or SATA SSDs 0

m2 pcie 40 in 30 slot Testing and installing a Gen4 NVME SSD on a Gen3 Motherboard This includes

m2 slot You'll be able to do more with less in this case, since a PCIe x8 slot can handle almost exactly what a PCIe x16 slot can currently 2-2 e funziona, provato a spostare nello slot non me lo - Supports PCIe x4