For example, one may find better RAM to run more applications at the same time and a better graphics card is one. For a more normal motherboard, the cPU can be used as well, and one of the isthers to be more.
For some customers, the option of using 6 GPU slots is essential, as they are more convenient to use. For those who want to use a 6 GPU motherboard, a 6 GPU motherboard can be better than their GPU counterparts.