With 8GB of DDR4 RAM, your computer is suitable for playing the average video game or editing photos. When purchasing 8GB of DDR4 RAM, make sure that your computer supports this type of memory. You can either DDR4 SODIMMs for your laptop or DDR4 DIMMs for your desktop. The clock speed, 8GB of DDR4 RAM clocked at 2,400Mhz, for example, needs to match the clock speeds supported by your motherboard.