Is DDR4 RAM compatible in a DDR3 RAM slot?

Is DDR4 RAM compatible in a DDR3 RAM slot? ddr3 in ddr4 slot DDR3 RAM uses a 240-pin connector, whereas DDR4 uses a 288-pin connector A motherboard with DDR4 compatibility won't work with DDR3 RAM and ddr3 vs ddr4 slot -73% Ant Value B450MAD4-N Motherboard Socket 11553rd and 2nd Generation Core Series CPUDDR3 1333MHz

ddr3 vs ddr4 slot  PCIe x16 Slots 1 2 3 4 5 7 Memory Type DDR5 DDR4 Memory Slots 2 4 8 12 AURA

ddr3 slot Find compatible memory kits for your motherboard Just select the motherboard desktop memory ddr ddr2 ddr3 ddr4 ddr5 Desktop Memory Designed for More tutorials: Let us present a how-to guide for DDR3 memory