The fourth version of DDR RAM, which is frequently used in desktop and mobile computers, is known as DDR4. Although it was first launched in 2014, it took until 2016 for it to become widely used.

DDR3, the prior DDR standard, will be replaced by DDR4. Larger sizes and quicker data transmission rates are benefits due to increased memory density and the presence of more memory banks (16 rather than 8). DDR4 uses less energy because it runs at a reduced level (1.2V as opposed to 1.5V).

Some noteworthy DDR4 specs are listed below:

• 64 GB maximum capacity per memory module (common capacities are 16 GB and 32 GB)
• 1600 to 4400 MHz clock speed
• 17 to 35.2 GB/s data transfer rate
• 16 internal memory banks
• 288 pins on a regular DIMM, 260 pins on a SO-DIMM
• 1.2 volts of electrical power

DIMMs and SO-DIMMs are the two main form factors for DDR4 memory units. While smartphones and all-in-one desktop PCs typically use SO-DIMMs, desktop workstations frequently use DIMMs. The lower border of DDR4 DIMMs is tapered for the first time, making it simpler to enter and remove them from Memory ports on a computer. This makes it impossible to put a DDR4 chip into an unsuitable socket, along with the specific location of the gap between the wires.

Modern computers, including multi-core CPUs, can keep up with DDR4 SDRAM thanks to its faster rates and greater memory capacity. By doing this, the memory is shielded from becoming a barrier as transport and processor rates rise.

DDR needs to be paired to a computer's unique specifications. Make careful to choose memory that is suitable with your computer's model (DDR2, DDR3, DDR4, etc.) and speed (1600, 2400, 3200, etc.) when you upgrade your memory.