Best answer: No. DDR4 is compatible, but the performance benefits of going with DDR5 can't be ignored, and there are other caveats to using DDR4 as well that make it largely a better bet to go with DDR5.
[h=2]No need to upgrade from your DDR4, but there are caveats[/h]The best RAM isn't the cheapest of PC components, so if you can reuse stuff you already have it takes the edge off putting together a new or upgraded PC. Fortunately, Intel's new 12th Gen "Alder Lake" CPUs are compatible with both DDR4 and DDR5 memory.
Full story from the WindowsCentral blog...