If you have an old motherboard, it is most likely that you have an older version of RAM. It is important to mention that DDR4s are not backward compatible with DDR3 motherboards because they are physically built differently. This article will focus more on the DDR3s and DDR4s as those two are the most relevant ones.ĭDR3s have a speed of 1,600 MT/s while DDR4s doubles that at around 3,200 MT/s. Throughout the generation of RAMs, the number signifies the number or speed of the model transfer that is measured by megatransfers per second or MT/s.
Conclusion What Are the Different RAM Types?