if you look at the beginning of the video (which shows what setting being used) DLSS are being turn on. this what improve the performance quite significantly (with the cost of image quality though i heard some of the new DLSS profiles already improve the image quality). ray tracing will be very demanding for cards like 2060. this is no different than the early days of tessellation. you want tessellation than prepare for cards like 5870 or GTX480 which is the fastest at the time.
games can be more intensive, but have worse system efficiency. (think how BF was at start. awful performance but they made it better over time through tweaks to the game code)Damn! Really? I thought Metro Exodus and Far Cry V were the most graphical intensive games.