Just upgraded my system. Went from Windows 7 and a GTX 970 to windows 10 and an RTX 2070. Same CPU in both, an i7 hexacore. Game fps more than doubled, Blender render times went from 2.5 hrs to 40 minutes on a test scene. Loaded a scene from Poser that had taken 12 and a half hours to render and... I stopped the render after 11 and a half hours as the render was only 62% complete. How on Earth can a 2070 be seen as 2/3rds as powerful as a 970?