http://www.pcgamer.com/assassins-creed-origins-103-update-helps-nvidia-owners-but-leaves-amd-behind/

The Assassin's Creed: Origins 1.03 patch is now live, and for Nvidia owners the news appears to be good, as our early testing indicates a performance increase in the neighborhood of 10-15 percent over what it offered out of the gate. People with AMD GPUs, on the other hand, don't appear to be so lucky.

While GTX 1080 Ti numbers jumped considerably, the numbers on an RX Vega 64 stayed almost the same, and actually slipped very slightly at some settings.