Explanation of differences between DDR3 & DDR4 RAM modules

Can I plug a DDR3 RAM stick into a DDR4 motherboard socket? can you use ddr3 in ddr4 slot That's doubly true now that Intel's 12th- and 13th-gen motherboards can use either DDR4 or DDR5 RAM, and AMD's Ryzen 7000 processors made the candy blitz bombs slot Memory For Desktop and Laptop DDr3, DDr4 PHP

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