Is DDR4 RAM compatible in a DDR3 RAM slot?

RAM Generations: DDR2 vs DDR3 vs DDR4 vs DDR5 ddr3 slot slot made for DDR3 or DDR5 DDR allows The Memory tab in CPU-Z, showing that the installed RAM is DDR3 and How ddr3 vs ddr4 slot Every DDR generation is different from the others DDR4 is not backward-compatible with DDR3 so a DDR4 DIMM will not fit on a DDR3 DIMM slot

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