What you 1070 people need to do is read this:
http://www.anandtech.com/show/11250/microsofts-project-scorpio-more-hardware-details-revealed
It will give you a pretty detailed tech analysis as to why it should be like a "slightly more powerful 480" than anything else...
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850