What Intel makes up for in GPU, they loose in CPU.
What AMD makes up for in CPU, they loose in GPU.

Now we need Nvidia to see whether it will be a full blown flop or full-on dominatiom.
At that point (with Nvidia) you’d only need a CPU, RAM and a MB to make a nearly all Nvidia PC.
An Nvidia case exists already, GPU, networking (NIC, Switch and cabling)