Key difference between DDR4 and DDR3 RAM

DDR5 Memory Standard: An introduction to the next generation of can you use ddr5 in ddr4 slot The Framework laptop mainboard has RAM slots so you can upgrade your memory later on, but DDR4 won't be compatible with DDR5 motherboards and can i run a pcie 40 in 30 slot 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

can you put pcie 1x in 16x slot Even if a DDR5 RAM stick could somehow be inserted into a DDR4 slot, the electrical differences between the two types would prevent the system from functioning