Is DDR4 RAM compatible in a DDR3 RAM slot?

Can you combine DDR3 and DDR4? ddr3 vs ddr4 slot DDR5 RAM is more powerful than DDR4 by a solid margin, with faster speeds and a higher peak data rate For those interested in upgrading to DDR5 RAM, make sure ddr3 in ddr4 slot Comments ; DDR4 vs DDR5 : What's the Difference, and Should You Upgrade? Tech

ddr3 slot DDR3 RAM and DDR4 RAM are not interchangeable, which means you need to make sure that your computer's Motherboard and CPU are compatible with the type of RAM