7900 XTX and PSU Cable

Hi I need some advice:

I have a TUF 850W psu

And I just got a 7900 XTX that has an input of 3 8pin cables.

My psu comes with 1 12vhpwr cable on the psu side that splits into two 8pin gpu side and another single 8pin x 8pin cable.

Can I use the 12vhpwr that splits into two 8pin? And I notice that the single 8pin x 8pin cable has the diciture CPU, so I think I couldn’t use it? I can’t find any cable with pcie written one other than the 12vhpwr