Understanding DDR5 and DDR4 Compatibility: Can They Work

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

Just to clarify DDR5 is not backwards compatible with DDR4, it's a completely different DIMM slot There will be DDR4 and DDR5 Alder Lake

ddr4 and ddr5 same slot DDR4 and DDR5 are not compatible, as they are different memory technologies DDR4 motherboards are designed to support DDR4 memory modules, and DDR5 graphics

ddr4 slot As noted already, DDR5 uses a different operating voltage than DDR4, has a different architecture, and has the key slot in a different location