Questions regarding XMP when using 4 DDR5 RAM sticks

Questions regarding XMP when using 4 DDR5 RAM sticks ddr4 and ddr5 same slot You cannot use DDR5 RAM into DDR4 motherboard socket Since DDR4 and DDR5 memory ddr4 in ddr3 slot DDR4 and DDR5 memory when it comes to gaming laptops? I've compared two laptops

ddr4 in ddr3 slot Each DIMM now has two channels instead of just one, improving efficiency by allowing the CPU to simultaneously access the same stick of RAM more

ddr4 slot While DDR5 SODIMM RAM modules are not yet widely available, they are expected to become the new standard for laptops and small form factor Regarding the number of pins on each module, both DDR4 and DDR5 use the same 288-pin layout, but the notch is placed differently This is a