Is DDR4 RAM compatible in a DDR3 RAM slot?

Difference Between DDR3 and DDR4 ddr3 in ddr4 slot MAINBOARD GIGABYTE B760M D3HP DDR4 • Socket LGA1700 for Intel 14th, 13th & 12th Gen Processors • Intel B760 • DDR4 ddr3 vs ddr4 slot Motherboard: Asus Prime B450M K II; Ram: 16GB DDR4 3200mhz; CPU Cooler: RGB Cooler; SSDNvme: 128GB SSD; Hard Drive: 500GB HDD; Power Supply: 600 Watts 80+

ddr3 in ddr4 slot KitGuru Says: Keeping in mind that DDR4 memory is still more expensive than DDR3, it makes a great sense to use the latter for inexpensive