You just could have checked the video and then you'd know that they used a 750Ti coupled with a Core 2 Duo. That combo barely compares to the Xbox One (slightly more GPU power in theory, but that gets hold back by the dualcore CPU and it's FSB so much the Xbox should almost be able to run circles around the rig. In effect it's about what the Switch should reach.
The 750 Ti is a PS4 level GPU. Maxwell is much more efficient, per streaming multiprocessor, than the GCN architecture in the XB1/PS4. And CPUs don't evolve as fast as GPUs. The Core 2 Duo performs better than Jaguar CPUs quite easily:
Granted, the PS4/XB1 can use 6 or 7 cores instead of 4, but at a lower clock than desktop Jaguars, and even then, the difference would still be there in favor of the Core 2 Duo. If it were a console, the Core 2 Duo + GTX 750 Ti would be close to the PS4 graphically, and be much more balanced than the Wii-U (the console which had the largest CPU-GPU gap I can think of ).