Go dual channel because the more pipe lines the more data could be acessed faster. This is a example, you have the cities pipe lines pushing water through
the whole city, but if you only have one pipeline to conduct water through the city there would be a huge bottleneck and therefore the water cannot flow through
the city's pipe system efficiently, but since the city has many pipelines water can flow in different direction fluently without and bottleneck. The same as with data moving upstream in down stream fluently using dual channel. In other words data is access and given faster.