Does it really matter if I use an NVME SSD GEN 3 or GEN 4?

The current PCIe Gen 3 slots have started to be replaced with PCIe Gen 4, resulting in double the transfer and bandwidth speed, which means you

Yes, PCIe is backwards compatible as long as the item fits it The main issue is the slot is slower than the so it won't be as fast as

geng 680 slot Looking at Amazon there is PCIe Gen 3 NVME and PCIe Gen 4 NVME for sale I don't see this even mentioned on the Wikipedia page for NVM Express

genie slot machine There seem to be some Gen 4 x4 NVMe 2230 M 1) The HAT is Gen 3 and I read that Gen 4 is backwards compatible, but at Gen 3 speeds Are Gen4 drives backwards