DDR5 - What Is the Difference?

does ddr4 fit in ddr5 slot   Dan does it matter which pcie slot i use for gpu

You can't They won't fit in the motherboard together The key notches that fit into the slot in the motherboard are in different positions

DDR4 is not backward-compatible with DDR3 so a DDR4 DIMM will not fit on a DDR3 DIMM slot Not only is the key notch of each DDR generation You cannot use DDR5 RAM into DDR4 motherboard socket Since DDR4 and DDR5 memory

book of dead slot png DDR4 DDR4 voltage is managed by MB with wide range Native DDR5 Secure Mode Unlock the latch of the PCIe slot easily when remove the graphics card in the Due to the unique electrical architecture of DDR5 DIMM, there's a high risk of damaging the memory module if AC power isn't disconnected properly during removal