What differentiates DDR4 memory from DDR3?

DDR4 memory is differentiated from DDR3 primarily by its higher maximum capacity per DIMM (Dual In-Line Memory Module). DDR4 allows for larger memory modules, enabling systems to support more RAM overall. This capacity increase comes from advancements in design and manufacturing processes, allowing for greater density in memory chips, which means that more memory can be packed into a single DIMM.

In contrast, options related to speed actually highlight that DDR4 provides faster data rates compared to DDR3, making it more efficient in transferring data. The form factor of DDR4 DIMMs is also slightly different from DDR3, which addresses compatibility; however, both types use the same DIMM format in general. Additionally, DDR4 technology actually operates at lower voltage compared to DDR3, resulting in reduced power consumption, rather than higher as suggested by that option. Thus, the distinguishing feature of greater capacity rightly identifies the advancements that DDR4 brings to memory technology.