While I think it's great that Intel will keep DDR4 support with the new chipset and Raptor Lake (well, they kind of have to since, theoretically you can drop it in the current 600-series), it's kind of a doubled edged sword. Why? Well, Zen4/Ry7K will use DDR5 exclusively and we all know Alder Lake does lose a bit of performance when using DDR4 instead of DDR5, specially in games. So this will be an interesting conundrum for Intel. I mean, most consumers will benefit from this and I like that as I said, but I still find interesting the potential problem Raptor Lake will face. How ironic that now Intel's backward support may be used against it in fighting for the top. Well, I'm guessing most reviewers will just use DDR5 only for RL/13K and Zen4/Ry7K, then compare to DDR4. Man, they'll have a fun time testing Intel systems twice, lol.