Intel Core i3 2100 Sandy Bridge vs. Core i3 7100 Kabylake Performance
With OpenArena, the performance is more than twice as fast when going from the Core i3 Sandy Bridge to Kabylake.
The frame latency is obviously much lower too.
The ET:Legacy game that re-fitted Enemy Territory Wolfenstein with an OpenGL 3 renderer and more, saw its performance more than double from the i3-2100 to i3-7100.
The power consumption here was about the same between the systems.